677370791 has 2 divisors, whose sum is σ = 677370792. Its totient is φ = 677370790.

The previous prime is 677370713. The next prime is 677370809. The reversal of 677370791 is 197073776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677370791 - 2¹⁴ = 677354407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677310791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338685395 + 338685396.

It is an arithmetic number, because the mean of its divisors is an integer number (338685396).

Almost surely, 2^677370791 is an apocalyptic number.

677370791 is a deficient number, since it is larger than the sum of its proper divisors (1).

677370791 is an equidigital number, since it uses as much as digits as its factorization.

677370791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388962, while the sum is 47.

The square root of 677370791 is about 26026.3480150405. The cubic root of 677370791 is about 878.2311192041.

The spelling of 677370791 in words is "six hundred seventy-seven million, three hundred seventy thousand, seven hundred ninety-one".