1338823 has 2 divisors, whose sum is σ = 1338824. Its totient is φ = 1338822.

The previous prime is 1338811. The next prime is 1338851. The reversal of 1338823 is 3288331.

It is an a-pointer prime, because the next prime (1338851) can be obtained adding 1338823 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1338823 - 2⁵ = 1338791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1338791 and 1338800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669411 + 669412.

It is an arithmetic number, because the mean of its divisors is an integer number (669412).

2^1338823 is an apocalyptic number.

1338823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338823 is an equidigital number, since it uses as much as digits as its factorization.

1338823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 1338823 is about 1157.0751920251. The cubic root of 1338823 is about 110.2150887933.

The spelling of 1338823 in words is "one million, three hundred thirty-eight thousand, eight hundred twenty-three".