397359816 has 48 divisors (see below), whose sum is σ = 1155590640. Its totient is φ = 113531040.

The previous prime is 397359797. The next prime is 397359839. The reversal of 397359816 is 618953793.

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 11 ways as a sum of consecutive naturals, for example, 167770 + ... + 170121.

It is an arithmetic number, because the mean of its divisors is an integer number (24074805).

Almost surely, 2^397359816 is an apocalyptic number.

It is an amenable number.

397359816 is an abundant number, since it is smaller than the sum of its proper divisors (758230824).

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

397359816 is a wasteful number, since it uses less digits than its factorization.

397359816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337914 (or 337903 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 397359816 is about 19933.8861238846. The cubic root of 397359816 is about 735.1816331157.

The spelling of 397359816 in words is "three hundred ninety-seven million, three hundred fifty-nine thousand, eight hundred sixteen".