397321323 has 16 divisors (see below), whose sum is σ = 614480640. Its totient is φ = 223651296.

The previous prime is 397321319. The next prime is 397321349. The reversal of 397321323 is 323123793.

It is not a de Polignac number, because 397321323 - 2² = 397321319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397321303) by changing a digit.

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, 139788 + ... + 142601.

It is an arithmetic number, because the mean of its divisors is an integer number (38405040).

Almost surely, 2^397321323 is an apocalyptic number.

397321323 is a deficient number, since it is larger than the sum of its proper divisors (217159317).

397321323 is a wasteful number, since it uses less digits than its factorization.

397321323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282466.

The product of its digits is 20412, while the sum is 33.

The square root of 397321323 is about 19932.9205837981. The cubic root of 397321323 is about 735.1578928688.

The spelling of 397321323 in words is "three hundred ninety-seven million, three hundred twenty-one thousand, three hundred twenty-three".