12993737 has 2 divisors, whose sum is σ = 12993738. Its totient is φ = 12993736.

The previous prime is 12993731. The next prime is 12993803. The reversal of 12993737 is 73739921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11703241 + 1290496 = 3421^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 12993737 - 2⁸ = 12993481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12993694 and 12993703.

It is not a weakly prime, because it can be changed into another prime (12993731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6496868 + 6496869.

It is an arithmetic number, because the mean of its divisors is an integer number (6496869).

Almost surely, 2^12993737 is an apocalyptic number.

It is an amenable number.

12993737 is a deficient number, since it is larger than the sum of its proper divisors (1).

12993737 is an equidigital number, since it uses as much as digits as its factorization.

12993737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442, while the sum is 41.

The square root of 12993737 is about 3604.6826489998. The cubic root of 12993737 is about 235.0957026831.

The spelling of 12993737 in words is "twelve million, nine hundred ninety-three thousand, seven hundred thirty-seven".