299993 has 2 divisors, whose sum is σ = 299994. Its totient is φ = 299992.

The previous prime is 299983. The next prime is 300007. The reversal of 299993 is 399992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299209 + 784 = 547^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 299993 - 2⁴ = 299977 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 299993.

It is not a weakly prime, because it can be changed into another prime (299903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149996 + 149997.

It is an arithmetic number, because the mean of its divisors is an integer number (149997).

2²⁹⁹⁹⁹³ is an apocalyptic number.

It is an amenable number.

299993 is a deficient number, since it is larger than the sum of its proper divisors (1).

299993 is an equidigital number, since it uses as much as digits as its factorization.

299993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39366, while the sum is 41.

The square root of 299993 is about 547.7161673714. The cubic root of 299993 is about 66.9427743341.

Subtracting 299993 from its reverse (399992), we obtain a palindrome (99999).

The spelling of 299993 in words is "two hundred ninety-nine thousand, nine hundred ninety-three".