872909278 has 16 divisors (see below), whose sum is σ = 1328286960. Its totient is φ = 430189056.

The previous prime is 872909263. The next prime is 872909341.

872909278 is nontrivially palindromic in base 10.

872909278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31701 + ... + 52447.

It is an arithmetic number, because the mean of its divisors is an integer number (83017935).

Almost surely, 2^872909278 is an apocalyptic number.

872909278 is a deficient number, since it is larger than the sum of its proper divisors (455377682).

872909278 is a wasteful number, since it uses less digits than its factorization.

872909278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21051.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 872909278 is about 29545.0381282543. The cubic root of 872909278 is about 955.7031919703.

The spelling of 872909278 in words is "eight hundred seventy-two million, nine hundred nine thousand, two hundred seventy-eight".