872452780 has 12 divisors (see below), whose sum is σ = 1832150880. Its totient is φ = 348981104.

The previous prime is 872452771. The next prime is 872452807. The reversal of 872452780 is 87254278.

It is a super-2 number, since 2×872452780² = 1522347706659456800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21811300 + ... + 21811339.

It is an arithmetic number, because the mean of its divisors is an integer number (152679240).

Almost surely, 2^872452780 is an apocalyptic number.

It is an amenable number.

872452780 is an abundant number, since it is smaller than the sum of its proper divisors (959698100).

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

872452780 is a wasteful number, since it uses less digits than its factorization.

872452780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43622648 (or 43622646 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 872452780 is about 29537.3116583077. The cubic root of 872452780 is about 955.5365642421.

It can be divided in two parts, 8724 and 52780, that added together give a square (61504 = 248²).

The spelling of 872452780 in words is "eight hundred seventy-two million, four hundred fifty-two thousand, seven hundred eighty".