87604144 has 20 divisors (see below), whose sum is σ = 172611720. Its totient is φ = 43059200.

The previous prime is 87604091. The next prime is 87604147. The reversal of 87604144 is 44140678.

It is not an unprimeable number, because it can be changed into a prime (87604147) 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, 45457 + ... + 47344.

It is an arithmetic number, because the mean of its divisors is an integer number (8630586).

Almost surely, 2^87604144 is an apocalyptic number.

It is an amenable number.

87604144 is a deficient number, since it is larger than the sum of its proper divisors (85007576).

87604144 is a wasteful number, since it uses less digits than its factorization.

87604144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92868 (or 92862 counting only the distinct ones).

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

The square root of 87604144 is about 9359.7085424708. The cubic root of 87604144 is about 444.1280641326.

The spelling of 87604144 in words is "eighty-seven million, six hundred four thousand, one hundred forty-four".