872775 has 30 divisors (see below), whose sum is σ = 1620432. Its totient is φ = 464400.

The previous prime is 872761. The next prime is 872789. The reversal of 872775 is 577278.

872775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (872761) and next prime (872789).

It is not a de Polignac number, because 872775 - 2⁷ = 872647 is a prime.

872775 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1810 + ... + 2240.

2⁸⁷²⁷⁷⁵ is an apocalyptic number.

872775 is a deficient number, since it is larger than the sum of its proper divisors (747657).

872775 is a wasteful number, since it uses less digits than its factorization.

872775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 439 counting only the distinct ones).

The product of its digits is 27440, while the sum is 36.

The square root of 872775 is about 934.2242771412. The cubic root of 872775 is about 95.5654184780.

The spelling of 872775 in words is "eight hundred seventy-two thousand, seven hundred seventy-five".