878919004 has 12 divisors (see below), whose sum is σ = 1540646464. Its totient is φ = 438734304.

The previous prime is 878919001. The next prime is 878919007. The reversal of 878919004 is 400919878.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (878919001) and next prime (878919007).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878919001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178569 + ... + 183424.

Almost surely, 2^878919004 is an apocalyptic number.

It is an amenable number.

878919004 is a deficient number, since it is larger than the sum of its proper divisors (661727460).

878919004 is a wasteful number, since it uses less digits than its factorization.

878919004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362604 (or 362602 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 878919004 is about 29646.5681656410. The cubic root of 878919004 is about 957.8914238375.

The spelling of 878919004 in words is "eight hundred seventy-eight million, nine hundred nineteen thousand, four".