87132708 has 144 divisors (see below), whose sum is σ = 256838400. Its totient is φ = 24675840.

The previous prime is 87132707. The next prime is 87132709. The reversal of 87132708 is 80723178.

It is an interprime number because it is at equal distance from previous prime (87132707) and next prime (87132709).

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

It is not an unprimeable number, because it can be changed into a prime (87132707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 364453 + ... + 364691.

It is an arithmetic number, because the mean of its divisors is an integer number (1783600).

Almost surely, 2^87132708 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 87132708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128419200).

87132708 is an abundant number, since it is smaller than the sum of its proper divisors (169705692).

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

87132708 is a wasteful number, since it uses less digits than its factorization.

87132708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 87132708 is about 9334.4902378223. The cubic root of 87132708 is about 443.3299486554.

The spelling of 87132708 in words is "eighty-seven million, one hundred thirty-two thousand, seven hundred eight".