2297749 has 2 divisors, whose sum is σ = 2297750. Its totient is φ = 2297748.

The previous prime is 2297747. The next prime is 2297759. The reversal of 2297749 is 9477922.

2297749 is nontrivially palindromic in base 9.

2297749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1782225 + 515524 = 1335^2 + 718^2 .

It is a cyclic number.

It is not a de Polignac number, because 2297749 - 2¹ = 2297747 is a prime.

Together with 2297747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2297741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1148874 + 1148875.

It is an arithmetic number, because the mean of its divisors is an integer number (1148875).

2^2297749 is an apocalyptic number.

It is an amenable number.

2297749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2297749 is an equidigital number, since it uses as much as digits as its factorization.

2297749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 2297749 is about 1515.8327744181. The cubic root of 2297749 is about 131.9575353151.

The spelling of 2297749 in words is "two million, two hundred ninety-seven thousand, seven hundred forty-nine".