87709392 has 120 divisors (see below), whose sum is σ = 269732736. Its totient is φ = 27495936.

The previous prime is 87709387. The next prime is 87709423. The reversal of 87709392 is 29390778.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65433 + ... + 66759.

Almost surely, 2^87709392 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 87709392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134866368).

87709392 is an abundant number, since it is smaller than the sum of its proper divisors (182023344).

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

87709392 is a wasteful number, since it uses less digits than its factorization.

87709392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 87709392 is about 9365.3292520872. The cubic root of 87709392 is about 444.3058520831.

The spelling of 87709392 in words is "eighty-seven million, seven hundred nine thousand, three hundred ninety-two".