86939124 has 12 divisors (see below), whose sum is σ = 202857984. Its totient is φ = 28979704.

The previous prime is 86939123. The next prime is 86939141. The reversal of 86939124 is 42193968.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×86939124² = 15116822563774752, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86939123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3622452 + ... + 3622475.

It is an arithmetic number, because the mean of its divisors is an integer number (16904832).

Almost surely, 2^86939124 is an apocalyptic number.

It is an amenable number.

86939124 is an abundant number, since it is smaller than the sum of its proper divisors (115918860).

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

86939124 is a wasteful number, since it uses less digits than its factorization.

86939124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7244934 (or 7244932 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 86939124 is about 9324.1151859037. The cubic root of 86939124 is about 443.0013876885.

It can be divided in two parts, 869 and 39124, that added together give a palindrome (39993).

The spelling of 86939124 in words is "eighty-six million, nine hundred thirty-nine thousand, one hundred twenty-four".