872879615 has 8 divisors (see below), whose sum is σ = 1061804688. Its totient is φ = 688737600.

The previous prime is 872879599. The next prime is 872879621. The reversal of 872879615 is 516978278.

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

It is not a de Polignac number, because 872879615 - 2⁴ = 872879599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195361 + ... + 1196090.

It is an arithmetic number, because the mean of its divisors is an integer number (132725586).

Almost surely, 2^872879615 is an apocalyptic number.

872879615 is a deficient number, since it is larger than the sum of its proper divisors (188925073).

872879615 is a wasteful number, since it uses less digits than its factorization.

872879615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391529.

The product of its digits is 1693440, while the sum is 53.

The square root of 872879615 is about 29544.5361276836. The cubic root of 872879615 is about 955.6923663532.

The spelling of 872879615 in words is "eight hundred seventy-two million, eight hundred seventy-nine thousand, six hundred fifteen".