1338609 has 8 divisors (see below), whose sum is σ = 1828512. Its totient is φ = 870560.

The previous prime is 1338587. The next prime is 1338637. The reversal of 1338609 is 9068331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1338609 - 2⁷ = 1338481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5319 + ... + 5564.

It is an arithmetic number, because the mean of its divisors is an integer number (228564).

2^1338609 is an apocalyptic number.

It is an amenable number.

1338609 is a deficient number, since it is larger than the sum of its proper divisors (489903).

1338609 is a wasteful number, since it uses less digits than its factorization.

1338609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10927.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1338609 is about 1156.9827137862. The cubic root of 1338609 is about 110.2092161510.

The spelling of 1338609 in words is "one million, three hundred thirty-eight thousand, six hundred nine".