397553564 has 12 divisors (see below), whose sum is σ = 707511000. Its totient is φ = 195407568.

The previous prime is 397553543. The next prime is 397553573. The reversal of 397553564 is 465355793.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842039 + ... + 842510.

It is an arithmetic number, because the mean of its divisors is an integer number (58959250).

Almost surely, 2^397553564 is an apocalyptic number.

It is an amenable number.

397553564 is a deficient number, since it is larger than the sum of its proper divisors (309957436).

397553564 is a wasteful number, since it uses less digits than its factorization.

397553564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684612 (or 1684610 counting only the distinct ones).

The product of its digits is 1701000, while the sum is 47.

The square root of 397553564 is about 19938.7452965326. The cubic root of 397553564 is about 735.3011023565.

The spelling of 397553564 in words is "three hundred ninety-seven million, five hundred fifty-three thousand, five hundred sixty-four".