2726839 has 2 divisors, whose sum is σ = 2726840. Its totient is φ = 2726838.

The previous prime is 2726837. The next prime is 2726873. The reversal of 2726839 is 9386272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2726839 - 2¹ = 2726837 is a prime.

Together with 2726837, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2726798 and 2726807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2726831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1363419 + 1363420.

It is an arithmetic number, because the mean of its divisors is an integer number (1363420).

2^2726839 is an apocalyptic number.

2726839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2726839 is an equidigital number, since it uses as much as digits as its factorization.

2726839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 2726839 is about 1651.3143250151. The cubic root of 2726839 is about 139.7075357171.

The spelling of 2726839 in words is "two million, seven hundred twenty-six thousand, eight hundred thirty-nine".