86593881 has 32 divisors (see below), whose sum is σ = 132857856. Its totient is φ = 49680000.

The previous prime is 86593879. The next prime is 86593931. The reversal of 86593881 is 18839568.

It is not a de Polignac number, because 86593881 - 2¹ = 86593879 is a prime.

It is a super-2 number, since 2×86593881² = 14997000453284322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86593881.

It is not an unprimeable number, because it can be changed into a prime (86593081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47181 + ... + 48981.

It is an arithmetic number, because the mean of its divisors is an integer number (4151808).

Almost surely, 2^86593881 is an apocalyptic number.

It is an amenable number.

86593881 is a deficient number, since it is larger than the sum of its proper divisors (46263975).

86593881 is a wasteful number, since it uses less digits than its factorization.

86593881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893.

The product of its digits is 414720, while the sum is 48.

The square root of 86593881 is about 9305.5833240050. The cubic root of 86593881 is about 442.4142104426.

The spelling of 86593881 in words is "eighty-six million, five hundred ninety-three thousand, eight hundred eighty-one".