872383278 has 64 divisors (see below), whose sum is σ = 1961547840. Its totient is φ = 256800768.

The previous prime is 872383273. The next prime is 872383297.

872383278 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×872383278² = 1522105167468050568, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872383273) by changing a digit.

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, 253900 + ... + 257312.

It is an arithmetic number, because the mean of its divisors is an integer number (30649185).

Almost surely, 2^872383278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872383278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (980773920).

872383278 is an abundant number, since it is smaller than the sum of its proper divisors (1089164562).

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

872383278 is a wasteful number, since it uses less digits than its factorization.

872383278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573.

The product of its digits is 903168, while the sum is 48.

The square root of 872383278 is about 29536.1351229304. The cubic root of 872383278 is about 955.5111900070.

The spelling of 872383278 in words is "eight hundred seventy-two million, three hundred eighty-three thousand, two hundred seventy-eight".