86500631 has 12 divisors (see below), whose sum is σ = 104999472. Its totient is φ = 70918848.

The previous prime is 86500621. The next prime is 86500639. The reversal of 86500631 is 13600568.

It is not a de Polignac number, because 86500631 - 2¹⁰ = 86499607 is a prime.

It is a super-2 number, since 2×86500631² = 14964718326796322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86500594 and 86500603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86500639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37250 + ... + 39503.

It is an arithmetic number, because the mean of its divisors is an integer number (8749956).

Almost surely, 2^86500631 is an apocalyptic number.

86500631 is a deficient number, since it is larger than the sum of its proper divisors (18498841).

86500631 is a wasteful number, since it uses less digits than its factorization.

86500631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76790 (or 76783 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 86500631 is about 9300.5715415774. The cubic root of 86500631 is about 442.2553464742.

The spelling of 86500631 in words is "eighty-six million, five hundred thousand, six hundred thirty-one".