878213814 has 16 divisors (see below), whose sum is σ = 1763968752. Its totient is φ = 291481088.

The previous prime is 878213813. The next prime is 878213851. The reversal of 878213814 is 418312878.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878213813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312699 + ... + 315494.

It is an arithmetic number, because the mean of its divisors is an integer number (110248047).

Almost surely, 2^878213814 is an apocalyptic number.

878213814 is an abundant number, since it is smaller than the sum of its proper divisors (885754938).

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

878213814 is a wasteful number, since it uses less digits than its factorization.

878213814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628431.

The product of its digits is 86016, while the sum is 42.

The square root of 878213814 is about 29634.6724969249. The cubic root of 878213814 is about 957.6351711038.

The spelling of 878213814 in words is "eight hundred seventy-eight million, two hundred thirteen thousand, eight hundred fourteen".