12643023 has 8 divisors (see below), whose sum is σ = 16979200. Its totient is φ = 8367768.

The previous prime is 12643021. The next prime is 12643049. The reversal of 12643023 is 32034621.

It is a happy number.

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

It is not a de Polignac number, because 12643023 - 2¹ = 12643021 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 (12643021) 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 7 ways as a sum of consecutive naturals, for example, 14743 + ... + 15576.

It is an arithmetic number, because the mean of its divisors is an integer number (2122400).

Almost surely, 2^12643023 is an apocalyptic number.

12643023 is a deficient number, since it is larger than the sum of its proper divisors (4336177).

12643023 is a wasteful number, since it uses less digits than its factorization.

12643023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30461.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 12643023 is about 3555.7028841004. The cubic root of 12643023 is about 232.9612257188.

Adding to 12643023 its reverse (32034621), we get a palindrome (44677644).

The spelling of 12643023 in words is "twelve million, six hundred forty-three thousand, twenty-three".