86763861 has 24 divisors (see below), whose sum is σ = 133908320. Its totient is φ = 53973216.

The previous prime is 86763857. The next prime is 86763863. The reversal of 86763861 is 16836768.

86763861 is a `hidden beast` number, since 8 + 6 + 7 + 638 + 6 + 1 = 666.

It is not a de Polignac number, because 86763861 - 2² = 86763857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86763863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7671 + ... + 15243.

Almost surely, 2^86763861 is an apocalyptic number.

It is an amenable number.

86763861 is a deficient number, since it is larger than the sum of its proper divisors (47144459).

86763861 is a wasteful number, since it uses less digits than its factorization.

86763861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7665 (or 7662 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 86763861 is about 9314.7120728448. The cubic root of 86763861 is about 442.7035011501.

The spelling of 86763861 in words is "eighty-six million, seven hundred sixty-three thousand, eight hundred sixty-one".