678767677 has 16 divisors (see below), whose sum is σ = 783032832. Its totient is φ = 576351360.

The previous prime is 678767633. The next prime is 678767689. The reversal of 678767677 is 776767876.

678767677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 678767677 - 2⁷ = 678767549 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 (678767777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472953 + ... + 474385.

It is an arithmetic number, because the mean of its divisors is an integer number (48939552).

Almost surely, 2^678767677 is an apocalyptic number.

It is an amenable number.

678767677 is a deficient number, since it is larger than the sum of its proper divisors (104265155).

678767677 is a wasteful number, since it uses less digits than its factorization.

678767677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028.

The product of its digits is 29042496, while the sum is 61.

The square root of 678767677 is about 26053.1701909768. The cubic root of 678767677 is about 878.8344059291.

The spelling of 678767677 in words is "six hundred seventy-eight million, seven hundred sixty-seven thousand, six hundred seventy-seven".