87644104 has 16 divisors (see below), whose sum is σ = 166648320. Its totient is φ = 43204560.

The previous prime is 87644071. The next prime is 87644113. The reversal of 87644104 is 40144678.

It is a self number, because there is not a number n which added to its sum of digits gives 87644104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76584 + ... + 77719.

It is an arithmetic number, because the mean of its divisors is an integer number (10415520).

Almost surely, 2^87644104 is an apocalyptic number.

It is an amenable number.

87644104 is a deficient number, since it is larger than the sum of its proper divisors (79004216).

87644104 is a wasteful number, since it uses less digits than its factorization.

87644104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154380 (or 154376 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 87644104 is about 9361.8429809520. The cubic root of 87644104 is about 444.1955824747.

The spelling of 87644104 in words is "eighty-seven million, six hundred forty-four thousand, one hundred four".