849913 has 4 divisors (see below), whose sum is σ = 863908. Its totient is φ = 835920.

The previous prime is 849883. The next prime is 849917. The reversal of 849913 is 319948.

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

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 369664 = 693^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 849913 - 2¹⁷ = 718841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849917) 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, 6906 + ... + 7027.

It is an arithmetic number, because the mean of its divisors is an integer number (215977).

2⁸⁴⁹⁹¹³ is an apocalyptic number.

It is an amenable number.

849913 is a deficient number, since it is larger than the sum of its proper divisors (13995).

849913 is a wasteful number, since it uses less digits than its factorization.

849913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13994.

The product of its digits is 7776, while the sum is 34.

The square root of 849913 is about 921.9072621473. The cubic root of 849913 is about 94.7235917520.

The spelling of 849913 in words is "eight hundred forty-nine thousand, nine hundred thirteen".