2397765749 has 2 divisors, whose sum is σ = 2397765750. Its totient is φ = 2397765748.

The previous prime is 2397765703. The next prime is 2397765751. The reversal of 2397765749 is 9475677932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1964085124 + 433680625 = 44318^2 + 20825^2 .

It is a cyclic number.

It is not a de Polignac number, because 2397765749 - 2²⁸ = 2129330293 is a prime.

Together with 2397765751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2397765049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1198882874 + 1198882875.

It is an arithmetic number, because the mean of its divisors is an integer number (1198882875).

Almost surely, 2^2397765749 is an apocalyptic number.

It is an amenable number.

2397765749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2397765749 is an equidigital number, since it uses as much as digits as its factorization.

2397765749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20003760, while the sum is 59.

The square root of 2397765749 is about 48966.9863173138. The cubic root of 2397765749 is about 1338.4503041624.

The spelling of 2397765749 in words is "two billion, three hundred ninety-seven million, seven hundred sixty-five thousand, seven hundred forty-nine".