872015877 has 24 divisors (see below), whose sum is σ = 1333332000. Its totient is φ = 548237088.

The previous prime is 872015857. The next prime is 872015899. The reversal of 872015877 is 778510278.

It is not a de Polignac number, because 872015877 - 2¹¹ = 872013829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872015857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27627 + ... + 50072.

It is an arithmetic number, because the mean of its divisors is an integer number (55555500).

Almost surely, 2^872015877 is an apocalyptic number.

872015877 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

872015877 is a deficient number, since it is larger than the sum of its proper divisors (461316123).

872015877 is a wasteful number, since it uses less digits than its factorization.

872015877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77777 (or 77774 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The square root of 872015877 is about 29529.9149507749. The cubic root of 872015877 is about 955.3770345010.

The spelling of 872015877 in words is "eight hundred seventy-two million, fifteen thousand, eight hundred seventy-seven".