397803025 has 9 divisors (see below), whose sum is σ = 493399441. Its totient is φ = 318162640.

The previous prime is 397803023. The next prime is 397803037. The reversal of 397803025 is 520308793.

The square root of 397803025 is 19945.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 11444689 + 386358336 = 3383^2 + 19656^2 .

It is not a de Polignac number, because 397803025 - 2¹ = 397803023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397803023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 97731 + ... + 101719.

Almost surely, 2^397803025 is an apocalyptic number.

397803025 is the 19945-th square number.

397803025 is the 9973-rd centered octagonal number.

It is an amenable number.

397803025 is a deficient number, since it is larger than the sum of its proper divisors (95596416).

397803025 is an frugal number, since it uses more digits than its factorization.

397803025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7988 (or 3994 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The cubic root of 397803025 is about 735.4548682987.

The spelling of 397803025 in words is "three hundred ninety-seven million, eight hundred three thousand, twenty-five".