2090749 has 2 divisors, whose sum is σ = 2090750. Its totient is φ = 2090748.

The previous prime is 2090719. The next prime is 2090771. The reversal of 2090749 is 9470902.

2090749 is nontrivially palindromic in base 4.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1625625 + 465124 = 1275^2 + 682^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090749 - 2⁵ = 2090717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2090749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2090719) 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, 1045374 + 1045375.

It is an arithmetic number, because the mean of its divisors is an integer number (1045375).

2^2090749 is an apocalyptic number.

It is an amenable number.

2090749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090749 is an equidigital number, since it uses as much as digits as its factorization.

2090749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 2090749 is about 1445.9422533421. The cubic root of 2090749 is about 127.8695978272.

The spelling of 2090749 in words is "two million, ninety thousand, seven hundred forty-nine".