872608209 has 8 divisors (see below), whose sum is σ = 1269248352. Its totient is φ = 528853440.

The previous prime is 872608199. The next prime is 872608213. The reversal of 872608209 is 902806278.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 872608209 - 2¹³ = 872600017 is a prime.

It is a super-2 number, since 2×872608209² = 1522890172828375362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872608409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13221304 + ... + 13221369.

It is an arithmetic number, because the mean of its divisors is an integer number (158656044).

Almost surely, 2^872608209 is an apocalyptic number.

It is an amenable number.

872608209 is a deficient number, since it is larger than the sum of its proper divisors (396640143).

872608209 is a wasteful number, since it uses less digits than its factorization.

872608209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26442687.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 872608209 is about 29539.9426031941. The cubic root of 872608209 is about 955.5933043803.

The spelling of 872608209 in words is "eight hundred seventy-two million, six hundred eight thousand, two hundred nine".