299855 has 4 divisors (see below), whose sum is σ = 359832. Its totient is φ = 239880.

The previous prime is 299843. The next prime is 299857. The reversal of 299855 is 558992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 299855 - 2¹² = 295759 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 (299857) 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, 29981 + ... + 29990.

It is an arithmetic number, because the mean of its divisors is an integer number (89958).

2²⁹⁹⁸⁵⁵ is an apocalyptic number.

299855 is a deficient number, since it is larger than the sum of its proper divisors (59977).

299855 is an equidigital number, since it uses as much as digits as its factorization.

299855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59976.

The product of its digits is 32400, while the sum is 38.

The square root of 299855 is about 547.5901752223. The cubic root of 299855 is about 66.9325079615.

The spelling of 299855 in words is "two hundred ninety-nine thousand, eight hundred fifty-five".