397612534 has 12 divisors (see below), whose sum is σ = 655568172. Its totient is φ = 180732860.

The previous prime is 397612513. The next prime is 397612543. The reversal of 397612534 is 435216793.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 821272 + ... + 821755.

It is an arithmetic number, because the mean of its divisors is an integer number (54630681).

Almost surely, 2^397612534 is an apocalyptic number.

397612534 is a deficient number, since it is larger than the sum of its proper divisors (257955638).

397612534 is a wasteful number, since it uses less digits than its factorization.

397612534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643051 (or 1643040 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The square root of 397612534 is about 19940.2240208078. The cubic root of 397612534 is about 735.3374568390.

The spelling of 397612534 in words is "three hundred ninety-seven million, six hundred twelve thousand, five hundred thirty-four".