12743889 has 8 divisors (see below), whose sum is σ = 17886240. Its totient is φ = 8048736.

The previous prime is 12743879. The next prime is 12743911. The reversal of 12743889 is 98834721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12743889 - 2¹⁶ = 12678353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12743889.

It is not an unprimeable number, because it can be changed into a prime (12743879) 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, 111732 + ... + 111845.

It is an arithmetic number, because the mean of its divisors is an integer number (2235780).

Almost surely, 2^12743889 is an apocalyptic number.

12743889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12743889 is a deficient number, since it is larger than the sum of its proper divisors (5142351).

12743889 is a wasteful number, since it uses less digits than its factorization.

12743889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223599.

The product of its digits is 96768, while the sum is 42.

The square root of 12743889 is about 3569.8584005532. The cubic root of 12743889 is about 233.5791067919.

The spelling of 12743889 in words is "twelve million, seven hundred forty-three thousand, eight hundred eighty-nine".