2745397 has 2 divisors, whose sum is σ = 2745398. Its totient is φ = 2745396.

The previous prime is 2745377. The next prime is 2745419. The reversal of 2745397 is 7935472.

2745397 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., 2090916 + 654481 = 1446^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745397 - 2⁷ = 2745269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2745307) 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, 1372698 + 1372699.

It is an arithmetic number, because the mean of its divisors is an integer number (1372699).

2^2745397 is an apocalyptic number.

It is an amenable number.

2745397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745397 is an equidigital number, since it uses as much as digits as its factorization.

2745397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 2745397 is about 1656.9239572171. The cubic root of 2745397 is about 140.0237544726.

It can be divided in two parts, 274 and 5397, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 2745397 in words is "two million, seven hundred forty-five thousand, three hundred ninety-seven".