86939392 has 36 divisors (see below), whose sum is σ = 174414520. Its totient is φ = 43250688.

The previous prime is 86939371. The next prime is 86939399. The reversal of 86939392 is 29393968.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86939399) 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, 57883 + ... + 59365.

Almost surely, 2^86939392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86939392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87207260).

86939392 is an abundant number, since it is smaller than the sum of its proper divisors (87475128).

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

86939392 is a wasteful number, since it uses less digits than its factorization.

86939392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728 (or 1714 counting only the distinct ones).

The product of its digits is 629856, while the sum is 49.

The square root of 86939392 is about 9324.1295572295. The cubic root of 86939392 is about 443.0018428892.

The spelling of 86939392 in words is "eighty-six million, nine hundred thirty-nine thousand, three hundred ninety-two".