12593921 has 2 divisors, whose sum is σ = 12593922. Its totient is φ = 12593920.

The previous prime is 12593891. The next prime is 12593951. The reversal of 12593921 is 12939521.

It is a balanced prime because it is at equal distance from previous prime (12593891) and next prime (12593951).

It can be written as a sum of positive squares in only one way, i.e., 12567025 + 26896 = 3545^2 + 164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12593921 is a prime.

It is not a weakly prime, because it can be changed into another prime (12593951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6296960 + 6296961.

It is an arithmetic number, because the mean of its divisors is an integer number (6296961).

Almost surely, 2^12593921 is an apocalyptic number.

It is an amenable number.

12593921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12593921 is an equidigital number, since it uses as much as digits as its factorization.

12593921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 32.

The square root of 12593921 is about 3548.7914844352. The cubic root of 12593921 is about 232.6592488209.

The spelling of 12593921 in words is "twelve million, five hundred ninety-three thousand, nine hundred twenty-one".