87309204 has 24 divisors (see below), whose sum is σ = 203947968. Its totient is φ = 29070720.

The previous prime is 87309191. The next prime is 87309217. The reversal of 87309204 is 40290378.

It is an interprime number because it is at equal distance from previous prime (87309191) and next prime (87309217).

It is a super-2 number, since 2×87309204² = 15245794206227232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8844 + ... + 15900.

It is an arithmetic number, because the mean of its divisors is an integer number (8497832).

Almost surely, 2^87309204 is an apocalyptic number.

It is an amenable number.

87309204 is an abundant number, since it is smaller than the sum of its proper divisors (116638764).

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

87309204 is a wasteful number, since it uses less digits than its factorization.

87309204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095 (or 8093 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 87309204 is about 9343.9394261735. The cubic root of 87309204 is about 443.6290831294.

It can be divided in two parts, 87 and 309204, that added together give a triangular number (309291 = T₇₈₆).

The spelling of 87309204 in words is "eighty-seven million, three hundred nine thousand, two hundred four".