2813439 has 4 divisors (see below), whose sum is σ = 3751256. Its totient is φ = 1875624.

The previous prime is 2813423. The next prime is 2813441. The reversal of 2813439 is 9343182.

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

It is not a de Polignac number, because 2813439 - 2⁴ = 2813423 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468904 + ... + 468909.

It is an arithmetic number, because the mean of its divisors is an integer number (937814).

2^2813439 is an apocalyptic number.

2813439 is a deficient number, since it is larger than the sum of its proper divisors (937817).

2813439 is an equidigital number, since it uses as much as digits as its factorization.

2813439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937816.

The product of its digits is 5184, while the sum is 30.

The square root of 2813439 is about 1677.3309154726. The cubic root of 2813439 is about 141.1711116123.

The spelling of 2813439 in words is "two million, eight hundred thirteen thousand, four hundred thirty-nine".