87320304 has 90 divisors (see below), whose sum is σ = 252913128. Its totient is φ = 28123200.

The previous prime is 87320293. The next prime is 87320327. The reversal of 87320304 is 40302378.

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 17 ways as a sum of consecutive naturals, for example, 138069 + ... + 138699.

Almost surely, 2^87320304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87320304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126456564).

87320304 is an abundant number, since it is smaller than the sum of its proper divisors (165592824).

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

87320304 is a wasteful number, since it uses less digits than its factorization.

87320304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 87320304 is about 9344.5333751879. The cubic root of 87320304 is about 443.6478824996.

The spelling of 87320304 in words is "eighty-seven million, three hundred twenty thousand, three hundred four".