299973 has 4 divisors (see below), whose sum is σ = 399968. Its totient is φ = 199980.

The previous prime is 299969. The next prime is 299977. The reversal of 299973 is 379992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (299969) and next prime (299977).

It is not a de Polignac number, because 299973 - 2² = 299969 is a prime.

It is a D-number.

It is a Duffinian number.

299973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299977) 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, 49993 + ... + 49998.

It is an arithmetic number, because the mean of its divisors is an integer number (99992).

2²⁹⁹⁹⁷³ is an apocalyptic number.

It is an amenable number.

299973 is a deficient number, since it is larger than the sum of its proper divisors (99995).

299973 is an equidigital number, since it uses as much as digits as its factorization.

299973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99994.

The product of its digits is 30618, while the sum is 39.

The square root of 299973 is about 547.6979094355. The cubic root of 299973 is about 66.9412866491.

The spelling of 299973 in words is "two hundred ninety-nine thousand, nine hundred seventy-three".