965785865 has 16 divisors (see below), whose sum is σ = 1330845120. Its totient is φ = 665421120.

The previous prime is 965785837. The next prime is 965785879. The reversal of 965785865 is 568587569.

It is not a de Polignac number, because 965785865 - 2¹² = 965781769 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461054 + ... + 463143.

It is an arithmetic number, because the mean of its divisors is an integer number (83177820).

Almost surely, 2^965785865 is an apocalyptic number.

965785865 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

965785865 is a deficient number, since it is larger than the sum of its proper divisors (365059255).

965785865 is a wasteful number, since it uses less digits than its factorization.

965785865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924232.

The product of its digits is 18144000, while the sum is 59.

The square root of 965785865 is about 31077.0955045673. The cubic root of 965785865 is about 988.4626907368.

The spelling of 965785865 in words is "nine hundred sixty-five million, seven hundred eighty-five thousand, eight hundred sixty-five".