678929876 has 12 divisors (see below), whose sum is σ = 1188315072. Its totient is φ = 339411288.

The previous prime is 678929861. The next prime is 678929879.

It is a happy number.

678929876 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678929879) 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, 32591 + ... + 49193.

It is an arithmetic number, because the mean of its divisors is an integer number (99026256).

Almost surely, 2^678929876 is an apocalyptic number.

It is an amenable number.

678929876 is a deficient number, since it is larger than the sum of its proper divisors (509385196).

678929876 is a wasteful number, since it uses less digits than its factorization.

678929876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26830 (or 26828 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 62.

The square root of 678929876 is about 26056.2828507828. The cubic root of 678929876 is about 878.9044027354.

The spelling of 678929876 in words is "six hundred seventy-eight million, nine hundred twenty-nine thousand, eight hundred seventy-six".