877816085 has 16 divisors (see below), whose sum is σ = 1060663296. Its totient is φ = 697413888.

The previous prime is 877816073. The next prime is 877816117. The reversal of 877816085 is 580618778.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-877816085 is a prime.

It is a super-2 number, since 2×877816085² = 1541122158169454450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676157 + ... + 677453.

It is an arithmetic number, because the mean of its divisors is an integer number (66291456).

Almost surely, 2^877816085 is an apocalyptic number.

It is an amenable number.

877816085 is a deficient number, since it is larger than the sum of its proper divisors (182847211).

877816085 is a wasteful number, since it uses less digits than its factorization.

877816085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132.

The product of its (nonzero) digits is 752640, while the sum is 50.

The square root of 877816085 is about 29627.9612022157. The cubic root of 877816085 is about 957.4905833867.

The spelling of 877816085 in words is "eight hundred seventy-seven million, eight hundred sixteen thousand, eighty-five".