86251618 has 8 divisors (see below), whose sum is σ = 132533100. Its totient is φ = 42073920.

The previous prime is 86251609. The next prime is 86251637. The reversal of 86251618 is 81615268.

It can be written as a sum of positive squares in 2 ways, for example, as 86248369 + 3249 = 9287^2 + 57^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525843 + ... + 526006.

Almost surely, 2^86251618 is an apocalyptic number.

86251618 is a deficient number, since it is larger than the sum of its proper divisors (46281482).

86251618 is a wasteful number, since it uses less digits than its factorization.

86251618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051892.

The product of its digits is 23040, while the sum is 37.

The square root of 86251618 is about 9287.1749202866. The cubic root of 86251618 is about 441.8305589140.

The spelling of 86251618 in words is "eighty-six million, two hundred fifty-one thousand, six hundred eighteen".