86499518 has 32 divisors (see below), whose sum is σ = 154180800. Its totient is φ = 35610624.

The previous prime is 86499509. The next prime is 86499541. The reversal of 86499518 is 81599468.

It is a happy number.

It is a super-2 number, since 2×86499518² = 14964333228464648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103928 + ... + 104756.

It is an arithmetic number, because the mean of its divisors is an integer number (4818150).

Almost surely, 2^86499518 is an apocalyptic number.

86499518 is a deficient number, since it is larger than the sum of its proper divisors (67681282).

86499518 is a wasteful number, since it uses less digits than its factorization.

86499518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124.

The product of its digits is 622080, while the sum is 50.

The square root of 86499518 is about 9300.5117063525. The cubic root of 86499518 is about 442.2534496390.

Subtracting from 86499518 its sum of digits (50), we obtain a palindrome (86499468).

The spelling of 86499518 in words is "eighty-six million, four hundred ninety-nine thousand, five hundred eighteen".