87806124 has 36 divisors (see below), whose sum is σ = 253662864. Its totient is φ = 25087392.

The previous prime is 87806119. The next prime is 87806137. The reversal of 87806124 is 42160878.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×87806124³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173967 + ... + 174470.

Almost surely, 2^87806124 is an apocalyptic number.

87806124 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

87806124 is an abundant number, since it is smaller than the sum of its proper divisors (165856740).

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

87806124 is a wasteful number, since it uses less digits than its factorization.

87806124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348454 (or 348449 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 87806124 is about 9370.4921962510. The cubic root of 87806124 is about 444.4691291753.

The spelling of 87806124 in words is "eighty-seven million, eight hundred six thousand, one hundred twenty-four".