799949993 has 2 divisors, whose sum is σ = 799949994. Its totient is φ = 799949992.

The previous prime is 799949981. The next prime is 799950001. The reversal of 799949993 is 399949997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 799928089 + 21904 = 28283^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 799949993 - 2⁸ = 799949737 is a prime.

It is not a weakly prime, because it can be changed into another prime (799949903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399974996 + 399974997.

It is an arithmetic number, because the mean of its divisors is an integer number (399974997).

Almost surely, 2^799949993 is an apocalyptic number.

It is an amenable number.

799949993 is a deficient number, since it is larger than the sum of its proper divisors (1).

799949993 is an equidigital number, since it uses as much as digits as its factorization.

799949993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44641044, while the sum is 68.

The square root of 799949993 is about 28283.3872264268. The cubic root of 799949993 is about 928.2984236584.

The spelling of 799949993 in words is "seven hundred ninety-nine million, nine hundred forty-nine thousand, nine hundred ninety-three".