872323278 has 64 divisors (see below), whose sum is σ = 1877810688. Its totient is φ = 269189120.

The previous prime is 872323267. The next prime is 872323297.

872323278 is nontrivially palindromic in base 10.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2804743 + ... + 2805053.

It is an arithmetic number, because the mean of its divisors is an integer number (29340792).

Almost surely, 2^872323278 is an apocalyptic number.

872323278 is an abundant number, since it is smaller than the sum of its proper divisors (1005487410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872323278 is a wasteful number, since it uses less digits than its factorization.

872323278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697.

The product of its digits is 225792, while the sum is 42.

The square root of 872323278 is about 29535.1194004697. The cubic root of 872323278 is about 955.4892837389.

The spelling of 872323278 in words is "eight hundred seventy-two million, three hundred twenty-three thousand, two hundred seventy-eight".