87004 has 6 divisors (see below), whose sum is σ = 152264. Its totient is φ = 43500.

The previous prime is 86993. The next prime is 87011. The reversal of 87004 is 40078.

It is a happy number.

87004 is nontrivially palindromic in base 12.

87004 is an undulating number in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10872 + ... + 10879.

2⁸⁷⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

87004 is a deficient number, since it is larger than the sum of its proper divisors (65260).

87004 is a wasteful number, since it uses less digits than its factorization.

87004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21755 (or 21753 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 87004 is about 294.9644046322. The cubic root of 87004 is about 44.3111552943.

The spelling of 87004 in words is "eighty-seven thousand, four".