878694998 has 12 divisors (see below), whose sum is σ = 1330281540. Its totient is φ = 435305016.

The previous prime is 878694991. The next prime is 878695001. The reversal of 878694998 is 899496878.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878694991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5273 + ... + 42251.

It is an arithmetic number, because the mean of its divisors is an integer number (110856795).

Almost surely, 2^878694998 is an apocalyptic number.

878694998 is a deficient number, since it is larger than the sum of its proper divisors (451586542).

878694998 is a wasteful number, since it uses less digits than its factorization.

878694998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37199 (or 37090 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 68.

The square root of 878694998 is about 29642.7899834007. The cubic root of 878694998 is about 957.8100391452.

The spelling of 878694998 in words is "eight hundred seventy-eight million, six hundred ninety-four thousand, nine hundred ninety-eight".