87678988 has 12 divisors (see below), whose sum is σ = 153505240. Its totient is φ = 43820352.

The previous prime is 87678971. The next prime is 87678991. The reversal of 87678988 is 88987678.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12283 + ... + 18061.

Almost surely, 2^87678988 is an apocalyptic number.

It is an amenable number.

87678988 is a deficient number, since it is larger than the sum of its proper divisors (65826252).

87678988 is a wasteful number, since it uses less digits than its factorization.

87678988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9576 (or 9574 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 61.

The square root of 87678988 is about 9363.7058902979. The cubic root of 87678988 is about 444.2545073867.

The spelling of 87678988 in words is "eighty-seven million, six hundred seventy-eight thousand, nine hundred eighty-eight".