87633888 has 24 divisors (see below), whose sum is σ = 230039208. Its totient is φ = 29211264.

The previous prime is 87633883. The next prime is 87633899. The reversal of 87633888 is 88833678.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 87633888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87633883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456331 + ... + 456522.

It is an arithmetic number, because the mean of its divisors is an integer number (9584967).

Almost surely, 2^87633888 is an apocalyptic number.

It is an amenable number.

87633888 is an abundant number, since it is smaller than the sum of its proper divisors (142405320).

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

87633888 is a wasteful number, since it uses less digits than its factorization.

87633888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912866 (or 912858 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 87633888 is about 9361.2973459879. The cubic root of 87633888 is about 444.1783229817.

The spelling of 87633888 in words is "eighty-seven million, six hundred thirty-three thousand, eight hundred eighty-eight".