794639191 has 2 divisors, whose sum is σ = 794639192. Its totient is φ = 794639190.

The previous prime is 794639189. The next prime is 794639203. The reversal of 794639191 is 191936497.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 794639191 - 2¹ = 794639189 is a prime.

Together with 794639189, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (794639101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397319595 + 397319596.

It is an arithmetic number, because the mean of its divisors is an integer number (397319596).

Almost surely, 2^794639191 is an apocalyptic number.

794639191 is a deficient number, since it is larger than the sum of its proper divisors (1).

794639191 is an equidigital number, since it uses as much as digits as its factorization.

794639191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 49.

The square root of 794639191 is about 28189.3453453605. The cubic root of 794639191 is about 926.2395618292.

The spelling of 794639191 in words is "seven hundred ninety-four million, six hundred thirty-nine thousand, one hundred ninety-one".