13009859 has 8 divisors (see below), whose sum is σ = 13270608. Its totient is φ = 12751200.

The previous prime is 13009823. The next prime is 13009901. The reversal of 13009859 is 95890031.

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 13009859 - 2²⁰ = 11961283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13005859) 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, 18209 + ... + 18909.

It is an arithmetic number, because the mean of its divisors is an integer number (1658826).

Almost surely, 2^13009859 is an apocalyptic number.

13009859 is a deficient number, since it is larger than the sum of its proper divisors (260749).

13009859 is an equidigital number, since it uses as much as digits as its factorization.

13009859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 13009859 is about 3606.9182136555. The cubic root of 13009859 is about 235.1928942872.

The spelling of 13009859 in words is "thirteen million, nine thousand, eight hundred fifty-nine".