2398206749 has 2 divisors, whose sum is σ = 2398206750. Its totient is φ = 2398206748.

The previous prime is 2398206739. The next prime is 2398206751. The reversal of 2398206749 is 9476028932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1912312900 + 485893849 = 43730^2 + 22043^2 .

It is a cyclic number.

It is not a de Polignac number, because 2398206749 - 2⁸ = 2398206493 is a prime.

It is a super-2 number, since 2×2398206749² = 11502791221898298002, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2398206751, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2398206697 and 2398206706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2398206709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199103374 + 1199103375.

It is an arithmetic number, because the mean of its divisors is an integer number (1199103375).

Almost surely, 2^2398206749 is an apocalyptic number.

It is an amenable number.

2398206749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398206749 is an equidigital number, since it uses as much as digits as its factorization.

2398206749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 2398206749 is about 48971.4891441949. The cubic root of 2398206749 is about 1338.5323556028.

The spelling of 2398206749 in words is "two billion, three hundred ninety-eight million, two hundred six thousand, seven hundred forty-nine".