397457115 has 32 divisors (see below), whose sum is σ = 695520000. Its totient is φ = 192213120.

The previous prime is 397457087. The next prime is 397457117. The reversal of 397457115 is 511754793.

It is not a de Polignac number, because 397457115 - 2⁵ = 397457083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397457117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66261 + ... + 72009.

It is an arithmetic number, because the mean of its divisors is an integer number (21735000).

Almost surely, 2^397457115 is an apocalyptic number.

397457115 is a deficient number, since it is larger than the sum of its proper divisors (298062885).

397457115 is a wasteful number, since it uses less digits than its factorization.

397457115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6187.

The product of its digits is 132300, while the sum is 42.

The square root of 397457115 is about 19936.3265171897. The cubic root of 397457115 is about 735.2416346534.

The spelling of 397457115 in words is "three hundred ninety-seven million, four hundred fifty-seven thousand, one hundred fifteen".