12003973 has 4 divisors (see below), whose sum is σ = 12032908. Its totient is φ = 11975040.

The previous prime is 12003961. The next prime is 12003977. The reversal of 12003973 is 37930021.

12003973 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, and also an emirpimes, since its reverse is a distinct semiprime: 37930021 = 1607 ⋅23603.

It can be written as a sum of positive squares in 2 ways, for example, as 5207524 + 6796449 = 2282^2 + 2607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12003973 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 (12003977) 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, 13836 + ... + 14677.

It is an arithmetic number, because the mean of its divisors is an integer number (3008227).

Almost surely, 2^12003973 is an apocalyptic number.

It is an amenable number.

12003973 is a deficient number, since it is larger than the sum of its proper divisors (28935).

12003973 is an equidigital number, since it uses as much as digits as its factorization.

12003973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28934.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 12003973 is about 3464.6750208353. The cubic root of 12003973 is about 228.9681121099.

Adding to 12003973 its reverse (37930021), we get a palindrome (49933994).

The spelling of 12003973 in words is "twelve million, three thousand, nine hundred seventy-three".