879218394 has 8 divisors (see below), whose sum is σ = 1758436800. Its totient is φ = 293072796.

The previous prime is 879218381. The next prime is 879218411. The reversal of 879218394 is 493812978.

It is a sphenic number, since it is the product of 3 distinct primes.

879218394 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73268194 + ... + 73268205.

It is an arithmetic number, because the mean of its divisors is an integer number (219804600).

Almost surely, 2^879218394 is an apocalyptic number.

879218394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

879218394 is a wasteful number, since it uses less digits than its factorization.

879218394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146536404.

The product of its digits is 870912, while the sum is 51.

The square root of 879218394 is about 29651.6170553985. The cubic root of 879218394 is about 958.0001750631. Note that the first 3 decimals are identical.

The spelling of 879218394 in words is "eight hundred seventy-nine million, two hundred eighteen thousand, three hundred ninety-four".