678994116 has 48 divisors (see below), whose sum is σ = 1655205888. Its totient is φ = 216381600.

The previous prime is 678994079. The next prime is 678994117. The reversal of 678994116 is 611499876.

It is a happy number.

It is a super-2 number, since 2×678994116² = 922066019125242912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (678994117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19881 + ... + 41871.

It is an arithmetic number, because the mean of its divisors is an integer number (34483456).

Almost surely, 2^678994116 is an apocalyptic number.

It is an amenable number.

678994116 is an abundant number, since it is smaller than the sum of its proper divisors (976211772).

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

678994116 is a wasteful number, since it uses less digits than its factorization.

678994116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22112 (or 22110 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 678994116 is about 26057.5155377484. The cubic root of 678994116 is about 878.9321223572.

The spelling of 678994116 in words is "six hundred seventy-eight million, nine hundred ninety-four thousand, one hundred sixteen".