878213406 has 32 divisors (see below), whose sum is σ = 2008661760. Its totient is φ = 250753536.

The previous prime is 878213333. The next prime is 878213437. The reversal of 878213406 is 604312878.

878213406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67390 + ... + 79358.

It is an arithmetic number, because the mean of its divisors is an integer number (62770680).

Almost surely, 2^878213406 is an apocalyptic number.

878213406 is an abundant number, since it is smaller than the sum of its proper divisors (1130448354).

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

878213406 is a wasteful number, since it uses less digits than its factorization.

878213406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13728.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 878213406 is about 29634.6656130958. The cubic root of 878213406 is about 957.6350228046.

The spelling of 878213406 in words is "eight hundred seventy-eight million, two hundred thirteen thousand, four hundred six".