799788173 has 2 divisors, whose sum is σ = 799788174. Its totient is φ = 799788172.

The previous prime is 799788163. The next prime is 799788181. The reversal of 799788173 is 371887997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 563920009 + 235868164 = 23747^2 + 15358^2 .

It is a cyclic number.

It is not a de Polignac number, because 799788173 - 2¹² = 799784077 is a prime.

It is a super-2 number, since 2×799788173² = 1279322243341355858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799788113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399894086 + 399894087.

It is an arithmetic number, because the mean of its divisors is an integer number (399894087).

Almost surely, 2^799788173 is an apocalyptic number.

It is an amenable number.

799788173 is a deficient number, since it is larger than the sum of its proper divisors (1).

799788173 is an equidigital number, since it uses as much as digits as its factorization.

799788173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5334336, while the sum is 59.

The square root of 799788173 is about 28280.5263918478. The cubic root of 799788173 is about 928.2358250034.

The spelling of 799788173 in words is "seven hundred ninety-nine million, seven hundred eighty-eight thousand, one hundred seventy-three".