12073921 has 2 divisors, whose sum is σ = 12073922. Its totient is φ = 12073920.

The previous prime is 12073909. The next prime is 12073939. The reversal of 12073921 is 12937021.

12073921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7617600 + 4456321 = 2760^2 + 2111^2 .

It is an emirp because it is prime and its reverse (12937021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12073921 - 2⁷ = 12073793 is a prime.

It is not a weakly prime, because it can be changed into another prime (12073991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6036960 + 6036961.

It is an arithmetic number, because the mean of its divisors is an integer number (6036961).

Almost surely, 2^12073921 is an apocalyptic number.

It is an amenable number.

12073921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12073921 is an equidigital number, since it uses as much as digits as its factorization.

12073921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12073921 is about 3474.7548114939. The cubic root of 12073921 is about 229.4119888526.

The spelling of 12073921 in words is "twelve million, seventy-three thousand, nine hundred twenty-one".