397423935 has 32 divisors (see below), whose sum is σ = 711648000. Its totient is φ = 210424608.

The previous prime is 397423927. The next prime is 397423973. The reversal of 397423935 is 539324793.

It is not a de Polignac number, because 397423935 - 2³ = 397423927 is a prime.

It is a super-2 number, since 2×397423935² = 315891568221768450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 31 ways as a sum of consecutive naturals, for example, 8176 + ... + 29354.

It is an arithmetic number, because the mean of its divisors is an integer number (22239000).

Almost surely, 2^397423935 is an apocalyptic number.

397423935 is a deficient number, since it is larger than the sum of its proper divisors (314224065).

397423935 is a wasteful number, since it uses less digits than its factorization.

397423935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332 (or 21326 counting only the distinct ones).

The product of its digits is 612360, while the sum is 45.

The square root of 397423935 is about 19935.4943505297. The cubic root of 397423935 is about 735.2211745875.

The spelling of 397423935 in words is "three hundred ninety-seven million, four hundred twenty-three thousand, nine hundred thirty-five".