397793924 has 24 divisors (see below), whose sum is σ = 792445248. Its totient is φ = 172953440.

The previous prime is 397793923. The next prime is 397793927. The reversal of 397793924 is 429397793.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (397793923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195527 + ... + 197550.

It is an arithmetic number, because the mean of its divisors is an integer number (33018552).

Almost surely, 2^397793924 is an apocalyptic number.

It is an amenable number.

397793924 is a deficient number, since it is larger than the sum of its proper divisors (394651324).

397793924 is a wasteful number, since it uses less digits than its factorization.

397793924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393115 (or 393113 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 53.

The square root of 397793924 is about 19944.7718462759. The cubic root of 397793924 is about 735.4492596386.

The spelling of 397793924 in words is "three hundred ninety-seven million, seven hundred ninety-three thousand, nine hundred twenty-four".