872873665 has 8 divisors (see below), whose sum is σ = 1081237248. Its totient is φ = 675773040.

The previous prime is 872873647. The next prime is 872873669. The reversal of 872873665 is 566378278.

872873665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 872873665 - 2⁵ = 872873633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872873669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2815567 + ... + 2815876.

It is an arithmetic number, because the mean of its divisors is an integer number (135154656).

Almost surely, 2^872873665 is an apocalyptic number.

It is an amenable number.

872873665 is a deficient number, since it is larger than the sum of its proper divisors (208363583).

872873665 is a wasteful number, since it uses less digits than its factorization.

872873665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631479.

The product of its digits is 3386880, while the sum is 52.

The square root of 872873665 is about 29544.4354320742. The cubic root of 872873665 is about 955.6901948500.

The spelling of 872873665 in words is "eight hundred seventy-two million, eight hundred seventy-three thousand, six hundred sixty-five".