397447404 has 24 divisors (see below), whose sum is σ = 957293568. Its totient is φ = 128208720.

The previous prime is 397447397. The next prime is 397447411. The reversal of 397447404 is 404744793.

It is an interprime number because it is at equal distance from previous prime (397447397) and next prime (397447411).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533832 + ... + 534575.

It is an arithmetic number, because the mean of its divisors is an integer number (39887232).

Almost surely, 2^397447404 is an apocalyptic number.

It is an amenable number.

397447404 is an abundant number, since it is smaller than the sum of its proper divisors (559846164).

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

397447404 is a wasteful number, since it uses less digits than its factorization.

397447404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068445 (or 1068443 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 397447404 is about 19936.0829653169. The cubic root of 397447404 is about 735.2356465946.

The spelling of 397447404 in words is "three hundred ninety-seven million, four hundred forty-seven thousand, four hundred four".