397152197 has 24 divisors (see below), whose sum is σ = 440605440. Its totient is φ = 357739200.

The previous prime is 397152179. The next prime is 397152227. The reversal of 397152197 is 791251793.

It is not a de Polignac number, because 397152197 - 2⁸ = 397151941 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397152127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2015903 + ... + 2016099.

It is an arithmetic number, because the mean of its divisors is an integer number (18358560).

Almost surely, 2^397152197 is an apocalyptic number.

It is an amenable number.

397152197 is a deficient number, since it is larger than the sum of its proper divisors (43453243).

397152197 is a wasteful number, since it uses less digits than its factorization.

397152197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 440 counting only the distinct ones).

The product of its digits is 119070, while the sum is 44.

The square root of 397152197 is about 19928.6777534286. The cubic root of 397152197 is about 735.0535676015.

The spelling of 397152197 in words is "three hundred ninety-seven million, one hundred fifty-two thousand, one hundred ninety-seven".