799217 has 2 divisors, whose sum is σ = 799218. Its totient is φ = 799216.

The previous prime is 799171. The next prime is 799219. The reversal of 799217 is 712997.

799217 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., 495616 + 303601 = 704^2 + 551^2 .

It is a cyclic number.

It is not a de Polignac number, because 799217 - 2⁸ = 798961 is a prime.

Together with 799219, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (799219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399608 + 399609.

It is an arithmetic number, because the mean of its divisors is an integer number (399609).

2⁷⁹⁹²¹⁷ is an apocalyptic number.

It is an amenable number.

799217 is a deficient number, since it is larger than the sum of its proper divisors (1).

799217 is an equidigital number, since it uses as much as digits as its factorization.

799217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 35.

The square root of 799217 is about 893.9893735386. The cubic root of 799217 is about 92.8014804188.

The spelling of 799217 in words is "seven hundred ninety-nine thousand, two hundred seventeen".