12036389 has 4 divisors (see below), whose sum is σ = 12071424. Its totient is φ = 12001356.

The previous prime is 12036373. The next prime is 12036397. The reversal of 12036389 is 98363021.

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 a cyclic number.

It is not a de Polignac number, because 12036389 - 2⁴ = 12036373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12056389) 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, 16997 + ... + 17690.

It is an arithmetic number, because the mean of its divisors is an integer number (3017856).

Almost surely, 2^12036389 is an apocalyptic number.

It is an amenable number.

12036389 is a deficient number, since it is larger than the sum of its proper divisors (35035).

12036389 is an equidigital number, since it uses as much as digits as its factorization.

12036389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35034.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 12036389 is about 3469.3499391096. The cubic root of 12036389 is about 229.1740316898.

The spelling of 12036389 in words is "twelve million, thirty-six thousand, three hundred eighty-nine".