397774994 has 16 divisors (see below), whose sum is σ = 628624800. Its totient is φ = 188252064.

The previous prime is 397774987. The next prime is 397775003. The reversal of 397774994 is 499477793.

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, 45662 + ... + 53670.

It is an arithmetic number, because the mean of its divisors is an integer number (39289050).

Almost surely, 2^397774994 is an apocalyptic number.

397774994 is a deficient number, since it is larger than the sum of its proper divisors (230849806).

397774994 is a wasteful number, since it uses less digits than its factorization.

397774994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9337.

The product of its digits is 12002256, while the sum is 59.

The square root of 397774994 is about 19944.2972801751. The cubic root of 397774994 is about 735.4375934010.

The spelling of 397774994 in words is "three hundred ninety-seven million, seven hundred seventy-four thousand, nine hundred ninety-four".