87786928 has 10 divisors (see below), whose sum is σ = 170087204. Its totient is φ = 43893456.

The previous prime is 87786917. The next prime is 87786961. The reversal of 87786928 is 82968778.

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, 2743326 + ... + 2743357.

Almost surely, 2^87786928 is an apocalyptic number.

It is an amenable number.

87786928 is a deficient number, since it is larger than the sum of its proper divisors (82300276).

87786928 is a wasteful number, since it uses less digits than its factorization.

87786928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486691 (or 5486685 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 55.

The square root of 87786928 is about 9369.4678610901. The cubic root of 87786928 is about 444.4367371626.

The spelling of 87786928 in words is "eighty-seven million, seven hundred eighty-six thousand, nine hundred twenty-eight".