872379844 has 24 divisors (see below), whose sum is σ = 1745739968. Its totient is φ = 373667040.

The previous prime is 872379839. The next prime is 872379877. The reversal of 872379844 is 448973278.

It is a super-2 number, since 2×872379844² = 1522093184434928672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 872379791 and 872379800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48562 + ... + 64054.

Almost surely, 2^872379844 is an apocalyptic number.

It is an amenable number.

872379844 is an abundant number, since it is smaller than the sum of its proper divisors (873360124).

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

872379844 is a wasteful number, since it uses less digits than its factorization.

872379844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17515 (or 17513 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The square root of 872379844 is about 29536.0769906906. The cubic root of 872379844 is about 955.5099362653.

The spelling of 872379844 in words is "eight hundred seventy-two million, three hundred seventy-nine thousand, eight hundred forty-four".