12743589 has 4 divisors (see below), whose sum is σ = 16991456. Its totient is φ = 8495724.

The previous prime is 12743581. The next prime is 12743611. The reversal of 12743589 is 98534721.

12743589 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 not a de Polignac number, because 12743589 - 2³ = 12743581 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 (12743581) 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, 2123929 + ... + 2123934.

It is an arithmetic number, because the mean of its divisors is an integer number (4247864).

Almost surely, 2^12743589 is an apocalyptic number.

It is an amenable number.

12743589 is a deficient number, since it is larger than the sum of its proper divisors (4247867).

12743589 is an equidigital number, since it uses as much as digits as its factorization.

12743589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247866.

The product of its digits is 60480, while the sum is 39.

The square root of 12743589 is about 3569.8163818325. The cubic root of 12743589 is about 233.5772739061.

The spelling of 12743589 in words is "twelve million, seven hundred forty-three thousand, five hundred eighty-nine".