299997 has 16 divisors (see below), whose sum is σ = 456960. Its totient is φ = 194400.

The previous prime is 299993. The next prime is 300007. The reversal of 299997 is 799992.

It is not a de Polignac number, because 299997 - 2² = 299993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972 + ... + 1242.

It is an arithmetic number, because the mean of its divisors is an integer number (28560).

2²⁹⁹⁹⁹⁷ is an apocalyptic number.

299997 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

299997 is a deficient number, since it is larger than the sum of its proper divisors (156963).

299997 is a wasteful number, since it uses less digits than its factorization.

299997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 315 counting only the distinct ones).

The product of its digits is 91854, while the sum is 45.

The square root of 299997 is about 547.7198188855. The cubic root of 299997 is about 66.9430718632.

It can be divided in two parts, 299 and 997, that added together give a 4-th power (1296 = 6⁴).

The spelling of 299997 in words is "two hundred ninety-nine thousand, nine hundred ninety-seven".