397570636 has 12 divisors (see below), whose sum is σ = 736675128. Its totient is φ = 187092032.

The previous prime is 397570609. The next prime is 397570639. The reversal of 397570636 is 636075793.

It is not an unprimeable number, because it can be changed into a prime (397570639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2923246 + ... + 2923381.

It is an arithmetic number, because the mean of its divisors is an integer number (61389594).

Almost surely, 2^397570636 is an apocalyptic number.

It is an amenable number.

397570636 is a deficient number, since it is larger than the sum of its proper divisors (339104492).

397570636 is a wasteful number, since it uses less digits than its factorization.

397570636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846648 (or 5846646 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 46.

The square root of 397570636 is about 19939.1734031278. The cubic root of 397570636 is about 735.3116274629.

The spelling of 397570636 in words is "three hundred ninety-seven million, five hundred seventy thousand, six hundred thirty-six".