799771297 has 16 divisors (see below), whose sum is σ = 885647952. Its totient is φ = 717511680.

The previous prime is 799771261. The next prime is 799771303. The reversal of 799771297 is 792177997.

It can be written as a sum of positive squares in 8 ways, for example, as 493906176 + 305865121 = 22224^2 + 17489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799771297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799771097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144933 + ... + 150349.

It is an arithmetic number, because the mean of its divisors is an integer number (55352997).

Almost surely, 2^799771297 is an apocalyptic number.

It is an amenable number.

799771297 is a deficient number, since it is larger than the sum of its proper divisors (85876655).

799771297 is a wasteful number, since it uses less digits than its factorization.

799771297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748.

The product of its digits is 3500658, while the sum is 58.

The square root of 799771297 is about 28280.2280224188. The cubic root of 799771297 is about 928.2292961838.

The spelling of 799771297 in words is "seven hundred ninety-nine million, seven hundred seventy-one thousand, two hundred ninety-seven".