299813 has 4 divisors (see below), whose sum is σ = 306240. Its totient is φ = 293388.

The previous prime is 299807. The next prime is 299843. The reversal of 299813 is 318992.

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 a cyclic number.

It is not a de Polignac number, because 299813 - 2⁶ = 299749 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 299813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299843) 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, 3143 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (76560).

2²⁹⁹⁸¹³ is an apocalyptic number.

It is an amenable number.

299813 is a deficient number, since it is larger than the sum of its proper divisors (6427).

299813 is an equidigital number, since it uses as much as digits as its factorization.

299813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6426.

The product of its digits is 3888, while the sum is 32.

The square root of 299813 is about 547.5518240313. The cubic root of 299813 is about 66.9293827881.

The spelling of 299813 in words is "two hundred ninety-nine thousand, eight hundred thirteen".