299749 has 2 divisors, whose sum is σ = 299750. Its totient is φ = 299748.

The previous prime is 299743. The next prime is 299771. The reversal of 299749 is 947992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294849 + 4900 = 543^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 299749 - 2¹⁷ = 168677 is a prime.

It is a plaindrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149874 + 149875.

It is an arithmetic number, because the mean of its divisors is an integer number (149875).

2²⁹⁹⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

299749 is a deficient number, since it is larger than the sum of its proper divisors (1).

299749 is an equidigital number, since it uses as much as digits as its factorization.

299749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 299749 is about 547.4933789554. The cubic root of 299749 is about 66.9246200578.

The spelling of 299749 in words is "two hundred ninety-nine thousand, seven hundred forty-nine".