12889453 has 4 divisors (see below), whose sum is σ = 13449888. Its totient is φ = 12329020.

The previous prime is 12889447. The next prime is 12889469. The reversal of 12889453 is 35498821.

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 a de Polignac number, because none of the positive numbers 2^k-12889453 is a prime.

It is a super-2 number, since 2×12889453² = 332275997278418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889423) 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, 280183 + ... + 280228.

It is an arithmetic number, because the mean of its divisors is an integer number (3362472).

Almost surely, 2^12889453 is an apocalyptic number.

It is an amenable number.

12889453 is a deficient number, since it is larger than the sum of its proper divisors (560435).

12889453 is an equidigital number, since it uses as much as digits as its factorization.

12889453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560434.

The product of its digits is 69120, while the sum is 40.

The square root of 12889453 is about 3590.1884351660. The cubic root of 12889453 is about 234.4650757300.

The spelling of 12889453 in words is "twelve million, eight hundred eighty-nine thousand, four hundred fifty-three".