87975915 has 8 divisors (see below), whose sum is σ = 140761488. Its totient is φ = 46920480.

The previous prime is 87975883. The next prime is 87975917. The reversal of 87975915 is 51957978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87975915 - 2⁵ = 87975883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87975917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2932516 + ... + 2932545.

It is an arithmetic number, because the mean of its divisors is an integer number (17595186).

Almost surely, 2^87975915 is an apocalyptic number.

87975915 is a deficient number, since it is larger than the sum of its proper divisors (52785573).

87975915 is a wasteful number, since it uses less digits than its factorization.

87975915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865069.

The product of its digits is 793800, while the sum is 51.

The square root of 87975915 is about 9379.5476969841. The cubic root of 87975915 is about 444.7554351987.

The spelling of 87975915 in words is "eighty-seven million, nine hundred seventy-five thousand, nine hundred fifteen".