1338811 has 2 divisors, whose sum is σ = 1338812. Its totient is φ = 1338810.

The previous prime is 1338809. The next prime is 1338823. The reversal of 1338811 is 1188331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1338811 - 2¹ = 1338809 is a prime.

Together with 1338809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1338851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669405 + 669406.

It is an arithmetic number, because the mean of its divisors is an integer number (669406).

2^1338811 is an apocalyptic number.

1338811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338811 is an equidigital number, since it uses as much as digits as its factorization.

1338811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

The square root of 1338811 is about 1157.0700065251. The cubic root of 1338811 is about 110.2147595028.

The spelling of 1338811 in words is "one million, three hundred thirty-eight thousand, eight hundred eleven".