87915877 has 8 divisors (see below), whose sum is σ = 101267456. Its totient is φ = 74762352.

The previous prime is 87915833. The next prime is 87915881. The reversal of 87915877 is 77851978.

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

It is a de Polignac number, because none of the positive numbers 2^k-87915877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87915827) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 48558 + ... + 50335.

It is an arithmetic number, because the mean of its divisors is an integer number (12658432).

Almost surely, 2^87915877 is an apocalyptic number.

It is an amenable number.

87915877 is a deficient number, since it is larger than the sum of its proper divisors (13351579).

87915877 is a wasteful number, since it uses less digits than its factorization.

87915877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99027.

The product of its digits is 987840, while the sum is 52.

The square root of 87915877 is about 9376.3466766113. The cubic root of 87915877 is about 444.6542396866.

The spelling of 87915877 in words is "eighty-seven million, nine hundred fifteen thousand, eight hundred seventy-seven".