397133085 has 16 divisors (see below), whose sum is σ = 637680960. Its totient is φ = 211048320.

The previous prime is 397133069. The next prime is 397133123. The reversal of 397133085 is 580331793.

It is not a de Polignac number, because 397133085 - 2⁴ = 397133069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42895 + ... + 51324.

It is an arithmetic number, because the mean of its divisors is an integer number (39855060).

Almost surely, 2^397133085 is an apocalyptic number.

It is an amenable number.

397133085 is a deficient number, since it is larger than the sum of its proper divisors (240547875).

397133085 is a wasteful number, since it uses less digits than its factorization.

397133085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94508.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 397133085 is about 19928.1982376732. The cubic root of 397133085 is about 735.0417765139.

The spelling of 397133085 in words is "three hundred ninety-seven million, one hundred thirty-three thousand, eighty-five".