87860964 has 24 divisors (see below), whose sum is σ = 217068768. Its totient is φ = 27564160.

The previous prime is 87860963. The next prime is 87860987. The reversal of 87860964 is 46906878.

It is not an unprimeable number, because it can be changed into a prime (87860963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215142 + ... + 215549.

It is an arithmetic number, because the mean of its divisors is an integer number (9044532).

Almost surely, 2^87860964 is an apocalyptic number.

It is an amenable number.

87860964 is an abundant number, since it is smaller than the sum of its proper divisors (129207804).

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

87860964 is a wasteful number, since it uses less digits than its factorization.

87860964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430715 (or 430713 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 87860964 is about 9373.4179465124. The cubic root of 87860964 is about 444.5616421392.

The spelling of 87860964 in words is "eighty-seven million, eight hundred sixty thousand, nine hundred sixty-four".