299989 has 4 divisors (see below), whose sum is σ = 313056. Its totient is φ = 286924.

The previous prime is 299983. The next prime is 299993. The reversal of 299989 is 989992.

It is a happy number.

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 299989 - 2⁷ = 299861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299983) 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, 6499 + ... + 6544.

It is an arithmetic number, because the mean of its divisors is an integer number (78264).

2²⁹⁹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

299989 is a deficient number, since it is larger than the sum of its proper divisors (13067).

299989 is a wasteful number, since it uses less digits than its factorization.

299989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13066.

The product of its digits is 104976, while the sum is 46.

The square root of 299989 is about 547.7125158329. The cubic root of 299989 is about 66.9424768024.

The spelling of 299989 in words is "two hundred ninety-nine thousand, nine hundred eighty-nine".