872551279 has 8 divisors (see below), whose sum is σ = 898729488. Its totient is φ = 846509760.

The previous prime is 872551223. The next prime is 872551289. The reversal of 872551279 is 972155278.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 872551279 - 2⁷ = 872551151 is a prime.

It is a super-2 number, since 2×872551279² = 1522691468969071682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872551289) 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, 21142 + ... + 46819.

It is an arithmetic number, because the mean of its divisors is an integer number (112341186).

Almost surely, 2^872551279 is an apocalyptic number.

872551279 is a deficient number, since it is larger than the sum of its proper divisors (26178209).

872551279 is a wasteful number, since it uses less digits than its factorization.

872551279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68345.

The product of its digits is 352800, while the sum is 46.

The square root of 872551279 is about 29538.9789769383. The cubic root of 872551279 is about 955.5725225795.

The spelling of 872551279 in words is "eight hundred seventy-two million, five hundred fifty-one thousand, two hundred seventy-nine".