397003064 has 8 divisors (see below), whose sum is σ = 744380760. Its totient is φ = 198501528.

The previous prime is 397003049. The next prime is 397003093. The reversal of 397003064 is 460300793.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×397003064² = 315222865650776192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 397003064.

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, 24812684 + ... + 24812699.

It is an arithmetic number, because the mean of its divisors is an integer number (93047595).

Almost surely, 2^397003064 is an apocalyptic number.

It is an amenable number.

397003064 is a deficient number, since it is larger than the sum of its proper divisors (347377696).

397003064 is a wasteful number, since it uses less digits than its factorization.

397003064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49625389 (or 49625385 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 397003064 is about 19924.9357338989. The cubic root of 397003064 is about 734.9615504282.

The spelling of 397003064 in words is "three hundred ninety-seven million, three thousand, sixty-four".