849799 has 4 divisors (see below), whose sum is σ = 861840. Its totient is φ = 837760.

The previous prime is 849773. The next prime is 849829. The reversal of 849799 is 997948.

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

It is a cyclic number.

It is not a de Polignac number, because 849799 - 2⁵ = 849767 is a prime.

It is a Duffinian number.

849799 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849599) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5914 + ... + 6055.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

2⁸⁴⁹⁷⁹⁹ is an apocalyptic number.

849799 is a deficient number, since it is larger than the sum of its proper divisors (12041).

849799 is a wasteful number, since it uses less digits than its factorization.

849799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12040.

The product of its digits is 163296, while the sum is 46.

The square root of 849799 is about 921.8454317292. The cubic root of 849799 is about 94.7193564274.

The spelling of 849799 in words is "eight hundred forty-nine thousand, seven hundred ninety-nine".