86887680 has 288 divisors, whose sum is σ = 323180928. Its totient is φ = 19824640.

The previous prime is 86887667. The next prime is 86887681. The reversal of 86887680 is 8678868.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86887681) 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 31 ways as a sum of consecutive naturals, for example, 5111032 + ... + 5111048.

It is an arithmetic number, because the mean of its divisors is an integer number (1122156).

Almost surely, 2^86887680 is an apocalyptic number.

86887680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86887680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161590464).

86887680 is an abundant number, since it is smaller than the sum of its proper divisors (236293248).

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

86887680 is a wasteful number, since it uses less digits than its factorization.

86887680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 86887680 is about 9321.3561245132. The cubic root of 86887680 is about 442.9139922064.

The spelling of 86887680 in words is "eighty-six million, eight hundred eighty-seven thousand, six hundred eighty".