13438859 has 8 divisors (see below), whose sum is σ = 15395328. Its totient is φ = 11491560.

The previous prime is 13438853. The next prime is 13438889. The reversal of 13438859 is 95883431.

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 13438859 - 2⁸ = 13438603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13438853) 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 7 ways as a sum of consecutive naturals, for example, 1214 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (1924416).

Almost surely, 2^13438859 is an apocalyptic number.

13438859 is a deficient number, since it is larger than the sum of its proper divisors (1956469).

13438859 is an equidigital number, since it uses as much as digits as its factorization.

13438859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585.

The product of its digits is 103680, while the sum is 41.

The square root of 13438859 is about 3665.9049360288. The cubic root of 13438859 is about 237.7501497307.

The spelling of 13438859 in words is "thirteen million, four hundred thirty-eight thousand, eight hundred fifty-nine".