677108817 has 24 divisors (see below), whose sum is σ = 1219383360. Its totient is φ = 351744480.

The previous prime is 677108813. The next prime is 677108863. The reversal of 677108817 is 718801776.

It is a happy number.

677108817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 677108817 - 2² = 677108813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677108813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487842 + ... + 489227.

It is an arithmetic number, because the mean of its divisors is an integer number (50807640).

Almost surely, 2^677108817 is an apocalyptic number.

It is an amenable number.

677108817 is a deficient number, since it is larger than the sum of its proper divisors (542274543).

677108817 is a wasteful number, since it uses less digits than its factorization.

677108817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977093 (or 977090 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 45.

The square root of 677108817 is about 26021.3146670187. The cubic root of 677108817 is about 878.1178856108.

The spelling of 677108817 in words is "six hundred seventy-seven million, one hundred eight thousand, eight hundred seventeen".