872275878 has 40 divisors (see below), whose sum is σ = 1969980672. Its totient is φ = 288462384.

The previous prime is 872275847. The next prime is 872275889. The reversal of 872275878 is 878572278.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 625 + ... + 41772.

Almost surely, 2^872275878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872275878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984990336).

872275878 is an abundant number, since it is smaller than the sum of its proper divisors (1097704794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872275878 is a wasteful number, since it uses less digits than its factorization.

872275878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42538 (or 42529 counting only the distinct ones).

The product of its digits is 3512320, while the sum is 54.

The square root of 872275878 is about 29534.3169550271. The cubic root of 872275878 is about 955.4719770769.

The spelling of 872275878 in words is "eight hundred seventy-two million, two hundred seventy-five thousand, eight hundred seventy-eight".