87610992 has 40 divisors (see below), whose sum is σ = 258662016. Its totient is φ = 25031616.

The previous prime is 87610987. The next prime is 87610993. The reversal of 87610992 is 29901678.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87610993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130038 + ... + 130709.

Almost surely, 2^87610992 is an apocalyptic number.

It is an amenable number.

87610992 is an abundant number, since it is smaller than the sum of its proper divisors (171051024).

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

87610992 is a wasteful number, since it uses less digits than its factorization.

87610992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260765 (or 260759 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 87610992 is about 9360.0743586790. The cubic root of 87610992 is about 444.1396363011.

The spelling of 87610992 in words is "eighty-seven million, six hundred ten thousand, nine hundred ninety-two".