397013072 has 10 divisors (see below), whose sum is σ = 769212858. Its totient is φ = 198506528.

The previous prime is 397013039. The next prime is 397013081. The reversal of 397013072 is 270310793.

It can be written as a sum of positive squares in only one way, i.e., 328189456 + 68823616 = 18116^2 + 8296^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12406643 + ... + 12406674.

Almost surely, 2^397013072 is an apocalyptic number.

It is an amenable number.

397013072 is a deficient number, since it is larger than the sum of its proper divisors (372199786).

397013072 is a wasteful number, since it uses less digits than its factorization.

397013072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24813325 (or 24813319 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 397013072 is about 19925.1868749078. The cubic root of 397013072 is about 734.9677262272.

The spelling of 397013072 in words is "three hundred ninety-seven million, thirteen thousand, seventy-two".