86763618 has 12 divisors (see below), whose sum is σ = 187987878. Its totient is φ = 28921200.

The previous prime is 86763601. The next prime is 86763623. The reversal of 86763618 is 81636768.

86763618 is a `hidden beast` number, since 8 + 6 + 7 + 636 + 1 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 73564929 + 13198689 = 8577^2 + 3633^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2410083 + ... + 2410118.

Almost surely, 2^86763618 is an apocalyptic number.

86763618 is an abundant number, since it is smaller than the sum of its proper divisors (101224260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86763618 is a wasteful number, since it uses less digits than its factorization.

86763618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820209 (or 4820206 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 86763618 is about 9314.6990289542. The cubic root of 86763618 is about 442.7030878557.

The spelling of 86763618 in words is "eighty-six million, seven hundred sixty-three thousand, six hundred eighteen".