872941209 has 32 divisors (see below), whose sum is σ = 1409667840. Its totient is φ = 469862400.

The previous prime is 872941189. The next prime is 872941213. The reversal of 872941209 is 902149278.

It is not a de Polignac number, because 872941209 - 2⁹ = 872940697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (872941249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7489 + ... + 42449.

It is an arithmetic number, because the mean of its divisors is an integer number (44052120).

Almost surely, 2^872941209 is an apocalyptic number.

It is an amenable number.

872941209 is a deficient number, since it is larger than the sum of its proper divisors (536726631).

872941209 is a wasteful number, since it uses less digits than its factorization.

872941209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35041.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 872941209 is about 29545.5785016980. The cubic root of 872941209 is about 955.7148450280.

The spelling of 872941209 in words is "eight hundred seventy-two million, nine hundred forty-one thousand, two hundred nine".