86892491 has 16 divisors (see below), whose sum is σ = 110684160. Its totient is φ = 66407040.

The previous prime is 86892469. The next prime is 86892517. The reversal of 86892491 is 19429868.

It is not a de Polignac number, because 86892491 - 2¹⁸ = 86630347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86892401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16955 + ... + 21476.

It is an arithmetic number, because the mean of its divisors is an integer number (6917760).

Almost surely, 2^86892491 is an apocalyptic number.

86892491 is a deficient number, since it is larger than the sum of its proper divisors (23791669).

86892491 is a wasteful number, since it uses less digits than its factorization.

86892491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38474.

The product of its digits is 248832, while the sum is 47.

The square root of 86892491 is about 9321.6141842494. The cubic root of 86892491 is about 442.9221668210.

The spelling of 86892491 in words is "eighty-six million, eight hundred ninety-two thousand, four hundred ninety-one".