397799974 has 24 divisors (see below), whose sum is σ = 704876472. Its totient is φ = 166907520.

The previous prime is 397799959. The next prime is 397800037. The reversal of 397799974 is 479997793.

It is a happy number.

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 in 11 ways as a sum of consecutive naturals, for example, 49779 + ... + 57214.

It is an arithmetic number, because the mean of its divisors is an integer number (29369853).

Almost surely, 2^397799974 is an apocalyptic number.

397799974 is a deficient number, since it is larger than the sum of its proper divisors (307076498).

397799974 is a wasteful number, since it uses less digits than its factorization.

397799974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107032 (or 107019 counting only the distinct ones).

The product of its digits is 27005076, while the sum is 64.

The square root of 397799974 is about 19944.9235145187. The cubic root of 397799974 is about 735.4529880729.

The spelling of 397799974 in words is "three hundred ninety-seven million, seven hundred ninety-nine thousand, nine hundred seventy-four".