794639221 has 2 divisors, whose sum is σ = 794639222. Its totient is φ = 794639220.

The previous prime is 794639203. The next prime is 794639227. The reversal of 794639221 is 122936497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 729756196 + 64883025 = 27014^2 + 8055^2 .

It is a cyclic number.

It is not a de Polignac number, because 794639221 - 2⁵ = 794639189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (794639227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397319610 + 397319611.

It is an arithmetic number, because the mean of its divisors is an integer number (397319611).

Almost surely, 2^794639221 is an apocalyptic number.

It is an amenable number.

794639221 is a deficient number, since it is larger than the sum of its proper divisors (1).

794639221 is an equidigital number, since it uses as much as digits as its factorization.

794639221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 794639221 is about 28189.3458774765. The cubic root of 794639221 is about 926.2395734853.

The spelling of 794639221 in words is "seven hundred ninety-four million, six hundred thirty-nine thousand, two hundred twenty-one".