13009389 has 4 divisors (see below), whose sum is σ = 17345856. Its totient is φ = 8672924.

The previous prime is 13009387. The next prime is 13009391. The reversal of 13009389 is 98390031.

13009389 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (13009387) and next prime (13009391).

It is a cyclic number.

It is not a de Polignac number, because 13009389 - 2¹ = 13009387 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13009387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168229 + ... + 2168234.

It is an arithmetic number, because the mean of its divisors is an integer number (4336464).

Almost surely, 2^13009389 is an apocalyptic number.

It is an amenable number.

13009389 is a deficient number, since it is larger than the sum of its proper divisors (4336467).

13009389 is an equidigital number, since it uses as much as digits as its factorization.

13009389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336466.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 13009389 is about 3606.8530604947. The cubic root of 13009389 is about 235.1900620251.

The spelling of 13009389 in words is "thirteen million, nine thousand, three hundred eighty-nine".