299391 has 8 divisors (see below), whose sum is σ = 416640. Its totient is φ = 190872.

The previous prime is 299389. The next prime is 299393. The reversal of 299391 is 193992.

299391 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (299389) and next prime (299393).

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

It is not a de Polignac number, because 299391 - 2¹ = 299389 is a prime.

299391 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299393) 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 7 ways as a sum of consecutive naturals, for example, 2101 + ... + 2238.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2²⁹⁹³⁹¹ is an apocalyptic number.

299391 is a deficient number, since it is larger than the sum of its proper divisors (117249).

299391 is a wasteful number, since it uses less digits than its factorization.

299391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365.

The product of its digits is 4374, while the sum is 33.

The square root of 299391 is about 547.1663366838. The cubic root of 299391 is about 66.8979660255.

The spelling of 299391 in words is "two hundred ninety-nine thousand, three hundred ninety-one".