872112859 has 4 divisors (see below), whose sum is σ = 872175616. Its totient is φ = 872050104.

The previous prime is 872112851. The next prime is 872112877. The reversal of 872112859 is 958211278.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 872112859 - 2³ = 872112851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872112851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219 + ... + 41764.

It is an arithmetic number, because the mean of its divisors is an integer number (218043904).

Almost surely, 2^872112859 is an apocalyptic number.

872112859 is a deficient number, since it is larger than the sum of its proper divisors (62757).

872112859 is a wasteful number, since it uses less digits than its factorization.

872112859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62756.

The product of its digits is 80640, while the sum is 43.

The square root of 872112859 is about 29531.5570026370. The cubic root of 872112859 is about 955.4124508825.

The spelling of 872112859 in words is "eight hundred seventy-two million, one hundred twelve thousand, eight hundred fifty-nine".