2398398869 has 2 divisors, whose sum is σ = 2398398870. Its totient is φ = 2398398868.

The previous prime is 2398398851. The next prime is 2398398883. The reversal of 2398398869 is 9688938932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1872292900 + 526105969 = 43270^2 + 22937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2398398869 is a prime.

It is a super-2 number, since 2×2398398869² = 11504634269640958322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2398398839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199199434 + 1199199435.

It is an arithmetic number, because the mean of its divisors is an integer number (1199199435).

Almost surely, 2^2398398869 is an apocalyptic number.

It is an amenable number.

2398398869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398398869 is an equidigital number, since it uses as much as digits as its factorization.

2398398869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40310784, while the sum is 65.

The square root of 2398398869 is about 48973.4506544107. The cubic root of 2398398869 is about 1338.5680978603.

The spelling of 2398398869 in words is "two billion, three hundred ninety-eight million, three hundred ninety-eight thousand, eight hundred sixty-nine".