87905115 has 64 divisors (see below), whose sum is σ = 168537600. Its totient is φ = 43327872.

The previous prime is 87905093. The next prime is 87905137. The reversal of 87905115 is 51150978.

It is an interprime number because it is at equal distance from previous prime (87905093) and next prime (87905137).

It is not a de Polignac number, because 87905115 - 2⁷ = 87904987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87905115.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109897 + ... + 110693.

It is an arithmetic number, because the mean of its divisors is an integer number (2633400).

Almost surely, 2^87905115 is an apocalyptic number.

87905115 is a deficient number, since it is larger than the sum of its proper divisors (80632485).

87905115 is a wasteful number, since it uses less digits than its factorization.

87905115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 87905115 is about 9375.7727681509. The cubic root of 87905115 is about 444.6360952044.

The spelling of 87905115 in words is "eighty-seven million, nine hundred five thousand, one hundred fifteen".