794050021 has 2 divisors, whose sum is σ = 794050022. Its totient is φ = 794050020.

The previous prime is 794049989. The next prime is 794050043. The reversal of 794050021 is 120050497.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 453093796 + 340956225 = 21286^2 + 18465^2 .

It is a cyclic number.

It is not a de Polignac number, because 794050021 - 2⁵ = 794049989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (794050121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397025010 + 397025011.

It is an arithmetic number, because the mean of its divisors is an integer number (397025011).

Almost surely, 2^794050021 is an apocalyptic number.

It is an amenable number.

794050021 is a deficient number, since it is larger than the sum of its proper divisors (1).

794050021 is an equidigital number, since it uses as much as digits as its factorization.

794050021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 794050021 is about 28178.8931826642. The cubic root of 794050021 is about 926.0105910402.

The spelling of 794050021 in words is "seven hundred ninety-four million, fifty thousand, twenty-one".