793279813 has 2 divisors, whose sum is σ = 793279814. Its totient is φ = 793279812.

The previous prime is 793279793. The next prime is 793279897. The reversal of 793279813 is 318972397.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 768509284 + 24770529 = 27722^2 + 4977^2 .

It is a cyclic number.

It is not a de Polignac number, because 793279813 - 2²¹ = 791182661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (793279213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396639906 + 396639907.

It is an arithmetic number, because the mean of its divisors is an integer number (396639907).

Almost surely, 2^793279813 is an apocalyptic number.

It is an amenable number.

793279813 is a deficient number, since it is larger than the sum of its proper divisors (1).

793279813 is an equidigital number, since it uses as much as digits as its factorization.

793279813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 49.

The square root of 793279813 is about 28165.2234679578. The cubic root of 793279813 is about 925.7110920697.

The spelling of 793279813 in words is "seven hundred ninety-three million, two hundred seventy-nine thousand, eight hundred thirteen".