799621577 has 2 divisors, whose sum is σ = 799621578. Its totient is φ = 799621576.

The previous prime is 799621573. The next prime is 799621579. The reversal of 799621577 is 775126997.

799621577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 799532176 + 89401 = 28276^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 799621577 - 2² = 799621573 is a prime.

Together with 799621579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (799621573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399810788 + 399810789.

It is an arithmetic number, because the mean of its divisors is an integer number (399810789).

Almost surely, 2^799621577 is an apocalyptic number.

It is an amenable number.

799621577 is a deficient number, since it is larger than the sum of its proper divisors (1).

799621577 is an equidigital number, since it uses as much as digits as its factorization.

799621577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1666980, while the sum is 53.

The square root of 799621577 is about 28277.5808194407. The cubic root of 799621577 is about 928.1713699726.

The spelling of 799621577 in words is "seven hundred ninety-nine million, six hundred twenty-one thousand, five hundred seventy-seven".