816717079 has 2 divisors, whose sum is σ = 816717080. Its totient is φ = 816717078.

The previous prime is 816717059. The next prime is 816717091. The reversal of 816717079 is 970717618.

816717079 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 is a cyclic number.

It is not a de Polignac number, because 816717079 - 2⁷ = 816716951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816717059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408358539 + 408358540.

It is an arithmetic number, because the mean of its divisors is an integer number (408358540).

Almost surely, 2^816717079 is an apocalyptic number.

816717079 is a deficient number, since it is larger than the sum of its proper divisors (1).

816717079 is an equidigital number, since it uses as much as digits as its factorization.

816717079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 46.

The square root of 816717079 is about 28578.2623509548. The cubic root of 816717079 is about 934.7393933727.

The spelling of 816717079 in words is "eight hundred sixteen million, seven hundred seventeen thousand, seventy-nine".