397946875 has 12 divisors (see below), whose sum is σ = 497405664. Its totient is φ = 318355000.

The previous prime is 397946869. The next prime is 397946891. The reversal of 397946875 is 578649793.

It is not a de Polignac number, because 397946875 - 2²⁵ = 364392443 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60547 + ... + 66796.

It is an arithmetic number, because the mean of its divisors is an integer number (41450472).

Almost surely, 2^397946875 is an apocalyptic number.

397946875 is a deficient number, since it is larger than the sum of its proper divisors (99458789).

397946875 is an frugal number, since it uses more digits than its factorization.

397946875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127368 (or 127348 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 58.

The square root of 397946875 is about 19948.6058410105. The cubic root of 397946875 is about 735.5435071698.

The spelling of 397946875 in words is "three hundred ninety-seven million, nine hundred forty-six thousand, eight hundred seventy-five".