677866194 has 48 divisors (see below), whose sum is σ = 1561203072. Its totient is φ = 211830144.

The previous prime is 677866187. The next prime is 677866219. The reversal of 677866194 is 491668776.

It is a happy number.

677866194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 677866194.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76267 + ... + 84689.

It is an arithmetic number, because the mean of its divisors is an integer number (32525064).

Almost surely, 2^677866194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677866194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780601536).

677866194 is an abundant number, since it is smaller than the sum of its proper divisors (883336878).

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

677866194 is a wasteful number, since it uses less digits than its factorization.

677866194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711 (or 8708 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 677866194 is about 26035.8636115647. The cubic root of 677866194 is about 878.4451685419.

The spelling of 677866194 in words is "six hundred seventy-seven million, eight hundred sixty-six thousand, one hundred ninety-four".