12273889 has 4 divisors (see below), whose sum is σ = 12325060. Its totient is φ = 12222720.

The previous prime is 12273887. The next prime is 12273893. The reversal of 12273889 is 98837221.

12273889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4389025 + 7884864 = 2095^2 + 2808^2 .

It is a cyclic number.

It is not a de Polignac number, because 12273889 - 2¹ = 12273887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12273887) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25224 + ... + 25705.

It is an arithmetic number, because the mean of its divisors is an integer number (3081265).

Almost surely, 2^12273889 is an apocalyptic number.

It is an amenable number.

12273889 is a deficient number, since it is larger than the sum of its proper divisors (51171).

12273889 is an equidigital number, since it uses as much as digits as its factorization.

12273889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51170.

The product of its digits is 48384, while the sum is 40.

The square root of 12273889 is about 3503.4110521034. The cubic root of 12273889 is about 230.6715658892.

The spelling of 12273889 in words is "twelve million, two hundred seventy-three thousand, eight hundred eighty-nine".