86501965 has 64 divisors (see below), whose sum is σ = 128563200. Its totient is φ = 55123200.

The previous prime is 86501963. The next prime is 86501969. The reversal of 86501965 is 56910568.

It is not a de Polignac number, because 86501965 - 2¹ = 86501963 is a prime.

It is a super-2 number, since 2×86501965² = 14965179897722450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86501963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1418035 + ... + 1418095.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 2^86501965 is an apocalyptic number.

It is an amenable number.

86501965 is a deficient number, since it is larger than the sum of its proper divisors (42061235).

86501965 is a wasteful number, since it uses less digits than its factorization.

86501965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 86501965 is about 9300.6432573237. The cubic root of 86501965 is about 442.2576199281.

The spelling of 86501965 in words is "eighty-six million, five hundred one thousand, nine hundred sixty-five".