397403672 has 8 divisors (see below), whose sum is σ = 745131900. Its totient is φ = 198701832.

The previous prime is 397403621. The next prime is 397403707. The reversal of 397403672 is 276304793.

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

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 as a sum of consecutive naturals, namely, 24837722 + ... + 24837737.

Almost surely, 2^397403672 is an apocalyptic number.

It is an amenable number.

397403672 is a deficient number, since it is larger than the sum of its proper divisors (347728228).

397403672 is a wasteful number, since it uses less digits than its factorization.

397403672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49675465 (or 49675461 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 41.

The square root of 397403672 is about 19934.9861299174. The cubic root of 397403672 is about 735.2086790812.

The spelling of 397403672 in words is "three hundred ninety-seven million, four hundred three thousand, six hundred seventy-two".