865304465 has 16 divisors (see below), whose sum is σ = 1087128000. Its totient is φ = 660311232.

The previous prime is 865304431. The next prime is 865304483. The reversal of 865304465 is 564403568.

It is a cyclic number.

It is not a de Polignac number, because 865304465 - 2²⁴ = 848527249 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, 23915 + ... + 47984.

It is an arithmetic number, because the mean of its divisors is an integer number (67945500).

Almost surely, 2^865304465 is an apocalyptic number.

It is an amenable number.

865304465 is a deficient number, since it is larger than the sum of its proper divisors (221823535).

865304465 is a wasteful number, since it uses less digits than its factorization.

865304465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72016.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 865304465 is about 29416.0579445989. The cubic root of 865304465 is about 952.9197209655.

The spelling of 865304465 in words is "eight hundred sixty-five million, three hundred four thousand, four hundred sixty-five".