1326839 has 2 divisors, whose sum is σ = 1326840. Its totient is φ = 1326838.

The previous prime is 1326823. The next prime is 1326859. The reversal of 1326839 is 9386231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1326839 - 2⁴ = 1326823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1326859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663419 + 663420.

It is an arithmetic number, because the mean of its divisors is an integer number (663420).

2^1326839 is an apocalyptic number.

1326839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326839 is an equidigital number, since it uses as much as digits as its factorization.

1326839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 1326839 is about 1151.8849768966. The cubic root of 1326839 is about 109.8852522420.

The spelling of 1326839 in words is "one million, three hundred twenty-six thousand, eight hundred thirty-nine".