87996992 has 14 divisors (see below), whose sum is σ = 174619158. Its totient is φ = 43998464.

The previous prime is 87996977. The next prime is 87997001. The reversal of 87996992 is 29969978.

It can be written as a sum of positive squares in only one way, i.e., 87909376 + 87616 = 9376^2 + 296^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 687413 + ... + 687540.

It is an arithmetic number, because the mean of its divisors is an integer number (12472797).

Almost surely, 2^87996992 is an apocalyptic number.

It is an amenable number.

87996992 is a deficient number, since it is larger than the sum of its proper divisors (86622166).

87996992 is a wasteful number, since it uses less digits than its factorization.

87996992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374965 (or 1374955 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 59.

The square root of 87996992 is about 9380.6711913381. The cubic root of 87996992 is about 444.7909500772.

It can be divided in two parts, 87996 and 992, that added together give a palindrome (88988).

The spelling of 87996992 in words is "eighty-seven million, nine hundred ninety-six thousand, nine hundred ninety-two".