87604 has 18 divisors (see below), whose sum is σ = 169442. Its totient is φ = 39600.

The previous prime is 87589. The next prime is 87613. The reversal of 87604 is 40678.

It can be written as a sum of positive squares in only one way, i.e., 48400 + 39204 = 220^2 + 198^2 .

It is a congruent number.

It is an unprimeable number.

87604 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 394 + ... + 574.

2⁸⁷⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

87604 is a deficient number, since it is larger than the sum of its proper divisors (81838).

87604 is a wasteful number, since it uses less digits than its factorization.

87604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 87604 is about 295.9797290356. The cubic root of 87604 is about 44.4127820786.

The spelling of 87604 in words is "eighty-seven thousand, six hundred four".