It is called Chāyāvati in Muthuswami Dikshitar school of Carnatic music.
The mnemonic phrase is sa ra gu ma pa dhi nu.
[1] Its ārohaṇa-avarohaṇa structure (ascending and descending scale) is as follows (see swaras in Carnatic music for details on below notation and terms): This scale uses the swaras, shuddha rishabham, antara gandharam, shuddha madhyamam, chathusruthi dhaivatham and kakali nishadham.
Suryakantam has many janya rāgams (derived scales) associated with it, of which Vasanta, Sowrashtram and Bhairavam are popular in concerts.
Suryakantam's notes when shifted using Graha bhedam, yields 2 melakarta rāgams, namely Senavati and Latangi.