396913865 has 16 divisors (see below), whose sum is σ = 504187200. Its totient is φ = 299447232.

The previous prime is 396913859. The next prime is 396913871. The reversal of 396913865 is 568319693.

It is an interprime number because it is at equal distance from previous prime (396913859) and next prime (396913871).

It is a cyclic number.

It is not a de Polignac number, because 396913865 - 2⁴ = 396913849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25595 + ... + 38064.

It is an arithmetic number, because the mean of its divisors is an integer number (31511700).

Almost surely, 2^396913865 is an apocalyptic number.

It is an amenable number.

396913865 is a deficient number, since it is larger than the sum of its proper divisors (107273335).

396913865 is a wasteful number, since it uses less digits than its factorization.

396913865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63736.

The product of its digits is 1049760, while the sum is 50.

The square root of 396913865 is about 19922.6972320517. The cubic root of 396913865 is about 734.9065023679.

The spelling of 396913865 in words is "three hundred ninety-six million, nine hundred thirteen thousand, eight hundred sixty-five".