299939 has 4 divisors (see below), whose sum is σ = 301224. Its totient is φ = 298656.

The previous prime is 299933. The next prime is 299941. The reversal of 299939 is 939992.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 299939 - 2⁸ = 299683 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 299896 and 299905.

It is not an unprimeable number, because it can be changed into a prime (299933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182 + ... + 795.

It is an arithmetic number, because the mean of its divisors is an integer number (75306).

2²⁹⁹⁹³⁹ is an apocalyptic number.

299939 is a deficient number, since it is larger than the sum of its proper divisors (1285).

299939 is an equidigital number, since it uses as much as digits as its factorization.

299939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

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

The square root of 299939 is about 547.6668695475. Note that the first 3 decimals coincide. The cubic root of 299939 is about 66.9387574329.

The spelling of 299939 in words is "two hundred ninety-nine thousand, nine hundred thirty-nine".