397091652 has 24 divisors (see below), whose sum is σ = 926893632. Its totient is φ = 132314400.

The previous prime is 397091641. The next prime is 397091689. The reversal of 397091652 is 256190793.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42702 + ... + 51162.

It is an arithmetic number, because the mean of its divisors is an integer number (38620568).

Almost surely, 2^397091652 is an apocalyptic number.

It is an amenable number.

397091652 is an abundant number, since it is smaller than the sum of its proper divisors (529801980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397091652 is a wasteful number, since it uses less digits than its factorization.

397091652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12379 (or 12377 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 397091652 is about 19927.1586534558. The cubic root of 397091652 is about 735.0162132570.

The spelling of 397091652 in words is "three hundred ninety-seven million, ninety-one thousand, six hundred fifty-two".