397279974 has 64 divisors (see below), whose sum is σ = 984001536. Its totient is φ = 104125824.

The previous prime is 397279957. The next prime is 397280017. The reversal of 397279974 is 479972793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89004 + ... + 93360.

It is an arithmetic number, because the mean of its divisors is an integer number (15375024).

Almost surely, 2^397279974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397279974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492000768).

397279974 is an abundant number, since it is smaller than the sum of its proper divisors (586721562).

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

397279974 is a wasteful number, since it uses less digits than its factorization.

397279974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549.

The product of its digits is 6001128, while the sum is 57.

The square root of 397279974 is about 19931.8833530602. The cubic root of 397279974 is about 735.1323894986.

The spelling of 397279974 in words is "three hundred ninety-seven million, two hundred seventy-nine thousand, nine hundred seventy-four".