2798323817 has 2 divisors, whose sum is σ = 2798323818. Its totient is φ = 2798323816.

The previous prime is 2798323799. The next prime is 2798323837. The reversal of 2798323817 is 7183238972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2599062361 + 199261456 = 50981^2 + 14116^2 .

It is a cyclic number.

It is not a de Polignac number, because 2798323817 - 2⁶ = 2798323753 is a prime.

It is a super-4 number, since 4×2798323817⁴ (a number of 39 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (2798323837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399161908 + 1399161909.

It is an arithmetic number, because the mean of its divisors is an integer number (1399161909).

Almost surely, 2^2798323817 is an apocalyptic number.

It is an amenable number.

2798323817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2798323817 is an equidigital number, since it uses as much as digits as its factorization.

2798323817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 50.

The square root of 2798323817 is about 52899.1854096072. The cubic root of 2798323817 is about 1409.1784387877.

The spelling of 2798323817 in words is "two billion, seven hundred ninety-eight million, three hundred twenty-three thousand, eight hundred seventeen".