12637843 has 2 divisors, whose sum is σ = 12637844. Its totient is φ = 12637842.

The previous prime is 12637819. The next prime is 12637847. The reversal of 12637843 is 34873621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12637843 - 2⁵ = 12637811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12637799 and 12637808.

It is not a weakly prime, because it can be changed into another prime (12637847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6318921 + 6318922.

It is an arithmetic number, because the mean of its divisors is an integer number (6318922).

Almost surely, 2^12637843 is an apocalyptic number.

12637843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12637843 is an equidigital number, since it uses as much as digits as its factorization.

12637843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 12637843 is about 3554.9744021582. The cubic root of 12637843 is about 232.9294056920.

The spelling of 12637843 in words is "twelve million, six hundred thirty-seven thousand, eight hundred forty-three".