872421580 has 24 divisors (see below), whose sum is σ = 1836354240. Its totient is φ = 348155520.

The previous prime is 872421559. The next prime is 872421593. The reversal of 872421580 is 85124278.

It is a super-2 number, since 2×872421580² = 1522238826499392800, which contains 22 as substring.

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, 41985 + ... + 59224.

It is an arithmetic number, because the mean of its divisors is an integer number (76514760).

Almost surely, 2^872421580 is an apocalyptic number.

It is an amenable number.

872421580 is an abundant number, since it is smaller than the sum of its proper divisors (963932660).

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

872421580 is a wasteful number, since it uses less digits than its factorization.

872421580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101649 (or 101647 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 872421580 is about 29536.7835080261. The cubic root of 872421580 is about 955.5251737130.

The spelling of 872421580 in words is "eight hundred seventy-two million, four hundred twenty-one thousand, five hundred eighty".