86487765 has 32 divisors (see below), whose sum is σ = 170317056. Its totient is φ = 36495360.

The previous prime is 86487757. The next prime is 86487787. The reversal of 86487765 is 56778468.

It is not a de Polignac number, because 86487765 - 2³ = 86487757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30316 + ... + 33045.

It is an arithmetic number, because the mean of its divisors is an integer number (5322408).

Almost surely, 2^86487765 is an apocalyptic number.

It is an amenable number.

86487765 is a deficient number, since it is larger than the sum of its proper divisors (83829291).

86487765 is a wasteful number, since it uses less digits than its factorization.

86487765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63389.

The product of its digits is 2257920, while the sum is 51.

The square root of 86487765 is about 9299.8798379334. The cubic root of 86487765 is about 442.2334185439.

The spelling of 86487765 in words is "eighty-six million, four hundred eighty-seven thousand, seven hundred sixty-five".