12387733 has 2 divisors, whose sum is σ = 12387734. Its totient is φ = 12387732.

The previous prime is 12387709. The next prime is 12387737. The reversal of 12387733 is 33778321.

12387733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7969329 + 4418404 = 2823^2 + 2102^2 .

It is a cyclic number.

It is not a de Polignac number, because 12387733 - 2⁵ = 12387701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12387737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6193866 + 6193867.

It is an arithmetic number, because the mean of its divisors is an integer number (6193867).

Almost surely, 2^12387733 is an apocalyptic number.

It is an amenable number.

12387733 is a deficient number, since it is larger than the sum of its proper divisors (1).

12387733 is an equidigital number, since it uses as much as digits as its factorization.

12387733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 34.

The square root of 12387733 is about 3519.6211443847. The cubic root of 12387733 is about 231.3825548291.

The spelling of 12387733 in words is "twelve million, three hundred eighty-seven thousand, seven hundred thirty-three".