878766225 has 12 divisors (see below), whose sum is σ = 1452893616. Its totient is φ = 468675280.

The previous prime is 878766211. The next prime is 878766247. The reversal of 878766225 is 522667878.

It is a happy number.

It is not a de Polignac number, because 878766225 - 2¹⁴ = 878749841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5858367 + ... + 5858516.

It is an arithmetic number, because the mean of its divisors is an integer number (121074468).

Almost surely, 2^878766225 is an apocalyptic number.

It is an amenable number.

878766225 is a deficient number, since it is larger than the sum of its proper divisors (574127391).

878766225 is a wasteful number, since it uses less digits than its factorization.

878766225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11716896 (or 11716891 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 878766225 is about 29643.9913810539. The cubic root of 878766225 is about 957.8359184672.

The spelling of 878766225 in words is "eight hundred seventy-eight million, seven hundred sixty-six thousand, two hundred twenty-five".