86520623 has 24 divisors (see below), whose sum is σ = 106704000. Its totient is φ = 69754608.

The previous prime is 86520613. The next prime is 86520677. The reversal of 86520623 is 32602568.

It is not a de Polignac number, because 86520623 - 2¹⁰ = 86519599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86520623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86520613) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 185036 + ... + 185502.

It is an arithmetic number, because the mean of its divisors is an integer number (4446000).

Almost surely, 2^86520623 is an apocalyptic number.

86520623 is a deficient number, since it is larger than the sum of its proper divisors (20183377).

86520623 is a wasteful number, since it uses less digits than its factorization.

86520623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 86520623 is about 9301.6462521427. The cubic root of 86520623 is about 442.2894151575.

The spelling of 86520623 in words is "eighty-six million, five hundred twenty thousand, six hundred twenty-three".