397345364 has 18 divisors (see below), whose sum is σ = 752958990. Its totient is φ = 183389856.

The previous prime is 397345363. The next prime is 397345367. The reversal of 397345364 is 463543793.

It can be written as a sum of positive squares in 3 ways, for example, as 23232400 + 374112964 = 4820^2 + 19342^2 .

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397345363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293219 + ... + 294570.

It is an arithmetic number, because the mean of its divisors is an integer number (41831055).

Almost surely, 2^397345364 is an apocalyptic number.

It is an amenable number.

397345364 is a deficient number, since it is larger than the sum of its proper divisors (355613626).

397345364 is a wasteful number, since it uses less digits than its factorization.

397345364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587819 (or 587804 counting only the distinct ones).

The product of its digits is 816480, while the sum is 44.

The square root of 397345364 is about 19933.5236222801. The cubic root of 397345364 is about 735.1727201411.

The spelling of 397345364 in words is "three hundred ninety-seven million, three hundred forty-five thousand, three hundred sixty-four".