87964 has 6 divisors (see below), whose sum is σ = 153944. Its totient is φ = 43980.

The previous prime is 87961. The next prime is 87973. The reversal of 87964 is 46978.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10992 + ... + 10999.

2⁸⁷⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

87964 is a deficient number, since it is larger than the sum of its proper divisors (65980).

87964 is a wasteful number, since it uses less digits than its factorization.

87964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21995 (or 21993 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 87964 is about 296.5872552892. The cubic root of 87964 is about 44.4735355839.

The spelling of 87964 in words is "eighty-seven thousand, nine hundred sixty-four".