87011115 has 16 divisors (see below), whose sum is σ = 139380000. Its totient is φ = 46351872.

The previous prime is 87011077. The next prime is 87011123. The reversal of 87011115 is 51111078.

It is not a de Polignac number, because 87011115 - 2⁹ = 87010603 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12261 + ... + 18009.

It is an arithmetic number, because the mean of its divisors is an integer number (8711250).

Almost surely, 2^87011115 is an apocalyptic number.

87011115 is a deficient number, since it is larger than the sum of its proper divisors (52368885).

87011115 is a wasteful number, since it uses less digits than its factorization.

87011115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6766.

The product of its (nonzero) digits is 280, while the sum is 24.

The square root of 87011115 is about 9327.9748606008. The cubic root of 87011115 is about 443.1236315169.

The spelling of 87011115 in words is "eighty-seven million, eleven thousand, one hundred fifteen".