677104391 has 2 divisors, whose sum is σ = 677104392. Its totient is φ = 677104390.

The previous prime is 677104367. The next prime is 677104399. The reversal of 677104391 is 193401776.

677104391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677104391 - 2⁶ = 677104327 is a prime.

It is a super-2 number, since 2×677104391² = 916940712622961762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677104399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338552195 + 338552196.

It is an arithmetic number, because the mean of its divisors is an integer number (338552196).

Almost surely, 2^677104391 is an apocalyptic number.

677104391 is a deficient number, since it is larger than the sum of its proper divisors (1).

677104391 is an equidigital number, since it uses as much as digits as its factorization.

677104391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 677104391 is about 26021.2296212151. The cubic root of 677104391 is about 878.1159723003.

The spelling of 677104391 in words is "six hundred seventy-seven million, one hundred four thousand, three hundred ninety-one".