87108857 has 4 divisors (see below), whose sum is σ = 95027856. Its totient is φ = 79189860.

The previous prime is 87108811. The next prime is 87108859. The reversal of 87108857 is 75880178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87108857 - 2⁸ = 87108601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87108859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3959483 + ... + 3959504.

It is an arithmetic number, because the mean of its divisors is an integer number (23756964).

Almost surely, 2^87108857 is an apocalyptic number.

It is an amenable number.

87108857 is a deficient number, since it is larger than the sum of its proper divisors (7918999).

87108857 is a wasteful number, since it uses less digits than its factorization.

87108857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7918998.

The product of its (nonzero) digits is 125440, while the sum is 44.

The square root of 87108857 is about 9333.2125765998. The cubic root of 87108857 is about 443.2894937837.

The spelling of 87108857 in words is "eighty-seven million, one hundred eight thousand, eight hundred fifty-seven".