12434889 has 4 divisors (see below), whose sum is σ = 16579856. Its totient is φ = 8289924.

The previous prime is 12434887. The next prime is 12434897. The reversal of 12434889 is 98843421.

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 12434889 - 2¹ = 12434887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12434887) 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, 2072479 + ... + 2072484.

It is an arithmetic number, because the mean of its divisors is an integer number (4144964).

Almost surely, 2^12434889 is an apocalyptic number.

It is an amenable number.

12434889 is a deficient number, since it is larger than the sum of its proper divisors (4144967).

12434889 is an equidigital number, since it uses as much as digits as its factorization.

12434889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144966.

The product of its digits is 55296, while the sum is 39.

The square root of 12434889 is about 3526.3137977214. The cubic root of 12434889 is about 231.6757820082.

The spelling of 12434889 in words is "twelve million, four hundred thirty-four thousand, eight hundred eighty-nine".