1338859 has 4 divisors (see below), whose sum is σ = 1382080. Its totient is φ = 1295640.

The previous prime is 1338851. The next prime is 1338863. The reversal of 1338859 is 9588331.

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

It is a cyclic number.

It is not a de Polignac number, because 1338859 - 2³ = 1338851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a 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 in 3 ways as a sum of consecutive naturals, for example, 21564 + ... + 21625.

It is an arithmetic number, because the mean of its divisors is an integer number (345520).

2^1338859 is an apocalyptic number.

1338859 is a deficient number, since it is larger than the sum of its proper divisors (43221).

1338859 is an equidigital number, since it uses as much as digits as its factorization.

1338859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43220.

The product of its digits is 25920, while the sum is 37.

The square root of 1338859 is about 1157.0907483858. The cubic root of 1338859 is about 110.2160766529.

It can be divided in two parts, 1338 and 859, that added together give a cube (2197 = 13³).

The spelling of 1338859 in words is "one million, three hundred thirty-eight thousand, eight hundred fifty-nine".