12032643 has 32 divisors (see below), whose sum is σ = 19699200. Its totient is φ = 6379776.

The previous prime is 12032623. The next prime is 12032687. The reversal of 12032643 is 34623021.

It is a happy number.

It is not a de Polignac number, because 12032643 - 2¹⁰ = 12031619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12032623) 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 31 ways as a sum of consecutive naturals, for example, 20863 + ... + 21431.

It is an arithmetic number, because the mean of its divisors is an integer number (615600).

Almost surely, 2^12032643 is an apocalyptic number.

12032643 is a deficient number, since it is larger than the sum of its proper divisors (7666557).

12032643 is a wasteful number, since it uses less digits than its factorization.

12032643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651.

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

The square root of 12032643 is about 3468.8100265076. The cubic root of 12032643 is about 229.1502544867.

Adding to 12032643 its reverse (34623021), we get a palindrome (46655664).

The spelling of 12032643 in words is "twelve million, thirty-two thousand, six hundred forty-three".