677310791 has 2 divisors, whose sum is σ = 677310792. Its totient is φ = 677310790.

The previous prime is 677310779. The next prime is 677310811. The reversal of 677310791 is 197013776.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677310791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677310701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338655395 + 338655396.

It is an arithmetic number, because the mean of its divisors is an integer number (338655396).

Almost surely, 2^677310791 is an apocalyptic number.

677310791 is a deficient number, since it is larger than the sum of its proper divisors (1).

677310791 is an equidigital number, since it uses as much as digits as its factorization.

677310791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55566, while the sum is 41.

The square root of 677310791 is about 26025.1953114669. The cubic root of 677310791 is about 878.2051878512.

The spelling of 677310791 in words is "six hundred seventy-seven million, three hundred ten thousand, seven hundred ninety-one".