299389 has 2 divisors, whose sum is σ = 299390. Its totient is φ = 299388.

The previous prime is 299371. The next prime is 299393. The reversal of 299389 is 983992.

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., 293764 + 5625 = 542^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 299389 - 2⁵ = 299357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149694 + 149695.

It is an arithmetic number, because the mean of its divisors is an integer number (149695).

2²⁹⁹³⁸⁹ is an apocalyptic number.

It is an amenable number.

299389 is a deficient number, since it is larger than the sum of its proper divisors (1).

299389 is an equidigital number, since it uses as much as digits as its factorization.

299389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 299389 is about 547.1645090830. The cubic root of 299389 is about 66.8978170606.

The spelling of 299389 in words is "two hundred ninety-nine thousand, three hundred eighty-nine".