87323904 has 108 divisors (see below), whose sum is σ = 254453472. Its totient is φ = 28800000.

The previous prime is 87323903. The next prime is 87323909. The reversal of 87323904 is 40932378.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87323903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347779 + ... + 348029.

Almost surely, 2^87323904 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 87323904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127226736).

87323904 is an abundant number, since it is smaller than the sum of its proper divisors (167129568).

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

87323904 is a wasteful number, since it uses less digits than its factorization.

87323904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 87323904 is about 9344.7259991933. The cubic root of 87323904 is about 443.6539792505.

The spelling of 87323904 in words is "eighty-seven million, three hundred twenty-three thousand, nine hundred four".