397563602 has 18 divisors (see below), whose sum is σ = 624419397. Its totient is φ = 189828936.

The previous prime is 397563601. The next prime is 397563613. The reversal of 397563602 is 206365793.

It can be written as a sum of positive squares in 2 ways, for example, as 221444161 + 176119441 = 14881^2 + 13271^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14099.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397563602.

It is not an unprimeable number, because it can be changed into a prime (397563601) 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, 648248 + ... + 648860.

Almost surely, 2^397563602 is an apocalyptic number.

397563602 is a deficient number, since it is larger than the sum of its proper divisors (226855795).

397563602 is an frugal number, since it uses more digits than its factorization.

397563602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 397563602 is about 19938.9970158983. The cubic root of 397563602 is about 735.3072909484.

The spelling of 397563602 in words is "three hundred ninety-seven million, five hundred sixty-three thousand, six hundred two".