677743667 has 2 divisors, whose sum is σ = 677743668. Its totient is φ = 677743666.

The previous prime is 677743657. The next prime is 677743673. The reversal of 677743667 is 766347776.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677743667 - 2⁸ = 677743411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (677743637) 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 as a sum of consecutive naturals, namely, 338871833 + 338871834.

It is an arithmetic number, because the mean of its divisors is an integer number (338871834).

Almost surely, 2^677743667 is an apocalyptic number.

677743667 is a deficient number, since it is larger than the sum of its proper divisors (1).

677743667 is an equidigital number, since it uses as much as digits as its factorization.

677743667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6223392, while the sum is 53.

The square root of 677743667 is about 26033.5104624789. The cubic root of 677743667 is about 878.3922378712.

The spelling of 677743667 in words is "six hundred seventy-seven million, seven hundred forty-three thousand, six hundred sixty-seven".