87632660 has 48 divisors (see below), whose sum is σ = 191020032. Its totient is φ = 33734400.

The previous prime is 87632651. The next prime is 87632681. The reversal of 87632660 is 6623678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173969 + ... + 174471.

It is an arithmetic number, because the mean of its divisors is an integer number (3979584).

Almost surely, 2^87632660 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 87632660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95510016).

87632660 is an abundant number, since it is smaller than the sum of its proper divisors (103387372).

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

87632660 is a wasteful number, since it uses less digits than its factorization.

87632660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 87632660 is about 9361.2317565585. The cubic root of 87632660 is about 444.1762482381.

The spelling of 87632660 in words is "eighty-seven million, six hundred thirty-two thousand, six hundred sixty".