677391067 has 2 divisors, whose sum is σ = 677391068. Its totient is φ = 677391066.

The previous prime is 677391047. The next prime is 677391089. The reversal of 677391067 is 760193776.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 677391067 - 2²⁷ = 543173339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (677391007) 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, 338695533 + 338695534.

It is an arithmetic number, because the mean of its divisors is an integer number (338695534).

Almost surely, 2^677391067 is an apocalyptic number.

677391067 is a deficient number, since it is larger than the sum of its proper divisors (1).

677391067 is an equidigital number, since it uses as much as digits as its factorization.

677391067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 333396, while the sum is 46.

The square root of 677391067 is about 26026.7375404602. The cubic root of 677391067 is about 878.2398819265.

The spelling of 677391067 in words is "six hundred seventy-seven million, three hundred ninety-one thousand, sixty-seven".