396860565 has 16 divisors (see below), whose sum is σ = 635923008. Its totient is φ = 211343616.

The previous prime is 396860551. The next prime is 396860573. The reversal of 396860565 is 565068693.

It is not a de Polignac number, because 396860565 - 2⁴ = 396860549 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, 9124 + ... + 29613.

It is an arithmetic number, because the mean of its divisors is an integer number (39745188).

Almost surely, 2^396860565 is an apocalyptic number.

It is an amenable number.

396860565 is a deficient number, since it is larger than the sum of its proper divisors (239062443).

396860565 is a wasteful number, since it uses less digits than its factorization.

396860565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39428.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The square root of 396860565 is about 19921.3595168603. The cubic root of 396860565 is about 734.8736049952.

The spelling of 396860565 in words is "three hundred ninety-six million, eight hundred sixty thousand, five hundred sixty-five".