87689408 has 56 divisors (see below), whose sum is σ = 188214000. Its totient is φ = 40393728.

The previous prime is 87689387. The next prime is 87689423. The reversal of 87689408 is 80498678.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44018 + ... + 45966.

Almost surely, 2^87689408 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 87689408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94107000).

87689408 is an abundant number, since it is smaller than the sum of its proper divisors (100524592).

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

87689408 is a wasteful number, since it uses less digits than its factorization.

87689408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017 (or 2007 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 87689408 is about 9364.2622774034. The cubic root of 87689408 is about 444.2721054783.

The spelling of 87689408 in words is "eighty-seven million, six hundred eighty-nine thousand, four hundred eight".