397118275 has 12 divisors (see below), whose sum is σ = 502905312. Its totient is φ = 310934240.

The previous prime is 397118219. The next prime is 397118279. The reversal of 397118275 is 572811793.

It is a de Polignac number, because none of the positive numbers 2^k-397118275 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397118279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167812 + ... + 170161.

It is an arithmetic number, because the mean of its divisors is an integer number (41908776).

Almost surely, 2^397118275 is an apocalyptic number.

397118275 is a deficient number, since it is larger than the sum of its proper divisors (105787037).

397118275 is a wasteful number, since it uses less digits than its factorization.

397118275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338030 (or 338025 counting only the distinct ones).

The product of its digits is 105840, while the sum is 43.

The square root of 397118275 is about 19927.8266501894. The cubic root of 397118275 is about 735.0326392712.

The spelling of 397118275 in words is "three hundred ninety-seven million, one hundred eighteen thousand, two hundred seventy-five".