2813839 has 8 divisors (see below), whose sum is σ = 3319808. Its totient is φ = 2333880.

The previous prime is 2813827. The next prime is 2813849. The reversal of 2813839 is 9383182.

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

It is a cyclic number.

It is not a de Polignac number, because 2813839 - 2⁵ = 2813807 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 (2813809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6267 + ... + 6700.

It is an arithmetic number, because the mean of its divisors is an integer number (414976).

2^2813839 is an apocalyptic number.

2813839 is a deficient number, since it is larger than the sum of its proper divisors (505969).

2813839 is a wasteful number, since it uses less digits than its factorization.

2813839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005.

The product of its digits is 10368, while the sum is 34.

The square root of 2813839 is about 1677.4501482906. The cubic root of 2813839 is about 141.1778016180.

The spelling of 2813839 in words is "two million, eight hundred thirteen thousand, eight hundred thirty-nine".