677711217 has 16 divisors (see below), whose sum is σ = 920586240. Its totient is φ = 443391312.

The previous prime is 677711207. The next prime is 677711219. The reversal of 677711217 is 712117776.

It is a happy number.

It is not a de Polignac number, because 677711217 - 2¹⁹ = 677186929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677711219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31018 + ... + 48140.

It is an arithmetic number, because the mean of its divisors is an integer number (57536640).

Almost surely, 2^677711217 is an apocalyptic number.

It is an amenable number.

677711217 is a deficient number, since it is larger than the sum of its proper divisors (242875023).

677711217 is a wasteful number, since it uses less digits than its factorization.

677711217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17372.

The product of its digits is 28812, while the sum is 39.

The square root of 677711217 is about 26032.8872198225. The cubic root of 677711217 is about 878.3782186658.

The spelling of 677711217 in words is "six hundred seventy-seven million, seven hundred eleven thousand, two hundred seventeen".