289083749 has 2 divisors, whose sum is σ = 289083750. Its totient is φ = 289083748.

The previous prime is 289083713. The next prime is 289083763. The reversal of 289083749 is 947380982.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277455649 + 11628100 = 16657^2 + 3410^2 .

It is a cyclic number.

It is not a de Polignac number, because 289083749 - 2²⁰ = 288035173 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 289083697 and 289083706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289083709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144541874 + 144541875.

It is an arithmetic number, because the mean of its divisors is an integer number (144541875).

Almost surely, 2^289083749 is an apocalyptic number.

It is an amenable number.

289083749 is a deficient number, since it is larger than the sum of its proper divisors (1).

289083749 is an equidigital number, since it uses as much as digits as its factorization.

289083749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 289083749 is about 17002.4630274558. The cubic root of 289083749 is about 661.2127602214.

The spelling of 289083749 in words is "two hundred eighty-nine million, eighty-three thousand, seven hundred forty-nine".