289983349 has 2 divisors, whose sum is σ = 289983350. Its totient is φ = 289983348.

The previous prime is 289983341. The next prime is 289983413. The reversal of 289983349 is 943389982.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198302724 + 91680625 = 14082^2 + 9575^2 .

It is a cyclic number.

It is not a de Polignac number, because 289983349 - 2³ = 289983341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289983349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289983341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144991674 + 144991675.

It is an arithmetic number, because the mean of its divisors is an integer number (144991675).

Almost surely, 2^289983349 is an apocalyptic number.

It is an amenable number.

289983349 is a deficient number, since it is larger than the sum of its proper divisors (1).

289983349 is an equidigital number, since it uses as much as digits as its factorization.

289983349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 55.

The square root of 289983349 is about 17028.8974687148. The cubic root of 289983349 is about 661.8979262000.

The spelling of 289983349 in words is "two hundred eighty-nine million, nine hundred eighty-three thousand, three hundred forty-nine".