12641723 has 2 divisors, whose sum is σ = 12641724. Its totient is φ = 12641722.

The previous prime is 12641683. The next prime is 12641737. The reversal of 12641723 is 32714621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12641723 - 2¹⁰ = 12640699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12641692 and 12641701.

It is not a weakly prime, because it can be changed into another prime (12641323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6320861 + 6320862.

It is an arithmetic number, because the mean of its divisors is an integer number (6320862).

Almost surely, 2^12641723 is an apocalyptic number.

12641723 is a deficient number, since it is larger than the sum of its proper divisors (1).

12641723 is an equidigital number, since it uses as much as digits as its factorization.

12641723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 12641723 is about 3555.5200744757. The cubic root of 12641723 is about 232.9532408149.

The spelling of 12641723 in words is "twelve million, six hundred forty-one thousand, seven hundred twenty-three".