87637376 has 64 divisors (see below), whose sum is σ = 180699120. Its totient is φ = 42319872.

The previous prime is 87637357. The next prime is 87637453. The reversal of 87637376 is 67373678.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 87637376.

It is a congruent number.

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, 775496 + ... + 775608.

Almost surely, 2^87637376 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 87637376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90349560).

87637376 is an abundant number, since it is smaller than the sum of its proper divisors (93061744).

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

87637376 is a wasteful number, since it uses less digits than its factorization.

87637376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 271 counting only the distinct ones).

The product of its digits is 889056, while the sum is 47.

The square root of 87637376 is about 9361.4836430985. The cubic root of 87637376 is about 444.1842159586.

The spelling of 87637376 in words is "eighty-seven million, six hundred thirty-seven thousand, three hundred seventy-six".