299005 has 8 divisors (see below), whose sum is σ = 410112. Its totient is φ = 205008.

The previous prime is 298999. The next prime is 299011. The reversal of 299005 is 500992.

299005 = 63² + 64² + ... + 104².

It is an interprime number because it is at equal distance from previous prime (298999) and next prime (299011).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-299005 is a prime.

It is a Duffinian number.

299005 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4237 + ... + 4306.

It is an arithmetic number, because the mean of its divisors is an integer number (51264).

2²⁹⁹⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

299005 is a deficient number, since it is larger than the sum of its proper divisors (111107).

299005 is an equidigital number, since it uses as much as digits as its factorization.

299005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 299005 is about 546.8134965416. The cubic root of 299005 is about 66.8692035038.

Adding to 299005 its reverse (500992), we get a palindrome (799997).

The spelling of 299005 in words is "two hundred ninety-nine thousand, five".