677117917 has 12 divisors (see below), whose sum is σ = 788633760. Its totient is φ = 579675096.

The previous prime is 677117891. The next prime is 677117929. The reversal of 677117917 is 719711776.

It is a de Polignac number, because none of the positive numbers 2^k-677117917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677117017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34048 + ... + 50134.

It is an arithmetic number, because the mean of its divisors is an integer number (65719480).

Almost surely, 2^677117917 is an apocalyptic number.

It is an amenable number.

677117917 is a deficient number, since it is larger than the sum of its proper divisors (111515843).

677117917 is a wasteful number, since it uses less digits than its factorization.

677117917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16960 (or 16953 counting only the distinct ones).

The product of its digits is 129654, while the sum is 46.

The square root of 677117917 is about 26021.4895230846. The cubic root of 677117917 is about 878.1218194133.

The spelling of 677117917 in words is "six hundred seventy-seven million, one hundred seventeen thousand, nine hundred seventeen".