86239808 has 28 divisors (see below), whose sum is σ = 172143420. Its totient is φ = 42865152.

The previous prime is 86239807. The next prime is 86239831. The reversal of 86239808 is 80893268.

It can be written as a sum of positive squares in 2 ways, for example, as 66455104 + 19784704 = 8152^2 + 4448^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (86239801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7178 + ... + 14966.

Almost surely, 2^86239808 is an apocalyptic number.

It is an amenable number.

86239808 is a deficient number, since it is larger than the sum of its proper divisors (85903612).

86239808 is a wasteful number, since it uses less digits than its factorization.

86239808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7974 (or 7964 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 86239808 is about 9286.5390754576. The cubic root of 86239808 is about 441.8103921152.

The spelling of 86239808 in words is "eighty-six million, two hundred thirty-nine thousand, eight hundred eight".