878631369 has 16 divisors (see below), whose sum is σ = 1460582400. Its totient is φ = 456431760.

The previous prime is 878631361. The next prime is 878631379. The reversal of 878631369 is 963136878.

It is not a de Polignac number, because 878631369 - 2³ = 878631361 is a prime.

It is a super-2 number, since 2×878631369² = 1543986165181628322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (878631361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1901569 + ... + 1902030.

It is an arithmetic number, because the mean of its divisors is an integer number (91286400).

Almost surely, 2^878631369 is an apocalyptic number.

It is an amenable number.

878631369 is a deficient number, since it is larger than the sum of its proper divisors (581951031).

878631369 is a wasteful number, since it uses less digits than its factorization.

878631369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803620.

The product of its digits is 1306368, while the sum is 51.

The square root of 878631369 is about 29641.7167012979. The cubic root of 878631369 is about 957.7869192662.

The spelling of 878631369 in words is "eight hundred seventy-eight million, six hundred thirty-one thousand, three hundred sixty-nine".