794639257 has 2 divisors, whose sum is σ = 794639258. Its totient is φ = 794639256.

The previous prime is 794639239. The next prime is 794639267. The reversal of 794639257 is 752936497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 794337856 + 301401 = 28184^2 + 549^2 .

It is a cyclic number.

It is not a de Polignac number, because 794639257 - 2²³ = 786250649 is a prime.

It is not a weakly prime, because it can be changed into another prime (794639227) 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, 397319628 + 397319629.

It is an arithmetic number, because the mean of its divisors is an integer number (397319629).

Almost surely, 2^794639257 is an apocalyptic number.

It is an amenable number.

794639257 is a deficient number, since it is larger than the sum of its proper divisors (1).

794639257 is an equidigital number, since it uses as much as digits as its factorization.

794639257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 52.

The square root of 794639257 is about 28189.3465160156. The cubic root of 794639257 is about 926.2395874726.

The spelling of 794639257 in words is "seven hundred ninety-four million, six hundred thirty-nine thousand, two hundred fifty-seven".