87817795 has 16 divisors (see below), whose sum is σ = 118423872. Its totient is φ = 62029440.

The previous prime is 87817747. The next prime is 87817811. The reversal of 87817795 is 59771878.

It is not a de Polignac number, because 87817795 - 2⁹ = 87817283 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, 27876 + ... + 30865.

It is an arithmetic number, because the mean of its divisors is an integer number (7401492).

Almost surely, 2^87817795 is an apocalyptic number.

87817795 is a deficient number, since it is larger than the sum of its proper divisors (30606077).

87817795 is a wasteful number, since it uses less digits than its factorization.

87817795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58782.

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

The square root of 87817795 is about 9371.1149283316. The cubic root of 87817795 is about 444.4888209278.

The spelling of 87817795 in words is "eighty-seven million, eight hundred seventeen thousand, seven hundred ninety-five".