87164504 has 16 divisors (see below), whose sum is σ = 186781200. Its totient is φ = 37356192.

The previous prime is 87164501. The next prime is 87164507. The reversal of 87164504 is 40546178.

It is an interprime number because it is at equal distance from previous prime (87164501) and next prime (87164507).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87164501) 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, 778199 + ... + 778310.

It is an arithmetic number, because the mean of its divisors is an integer number (11673825).

Almost surely, 2^87164504 is an apocalyptic number.

It is an amenable number.

87164504 is an abundant number, since it is smaller than the sum of its proper divisors (99616696).

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

87164504 is a wasteful number, since it uses less digits than its factorization.

87164504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556522 (or 1556518 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 87164504 is about 9336.1932285059. The cubic root of 87164504 is about 443.3838679588.

The spelling of 87164504 in words is "eighty-seven million, one hundred sixty-four thousand, five hundred four".