397308996 has 48 divisors (see below), whose sum is σ = 1177214080. Its totient is φ = 113516640.

The previous prime is 397308953. The next prime is 397309013. The reversal of 397308996 is 699803793.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262015 + ... + 263526.

Almost surely, 2^397308996 is an apocalyptic number.

397308996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

397308996 is an abundant number, since it is smaller than the sum of its proper divisors (779905084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397308996 is a wasteful number, since it uses less digits than its factorization.

397308996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525561 (or 525553 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 397308996 is about 19932.6113693113. The cubic root of 397308996 is about 735.1502899669.

The spelling of 397308996 in words is "three hundred ninety-seven million, three hundred eight thousand, nine hundred ninety-six".