12471643 has 2 divisors, whose sum is σ = 12471644. Its totient is φ = 12471642.

The previous prime is 12471631. The next prime is 12471649. The reversal of 12471643 is 34617421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12471643 - 2⁵ = 12471611 is a prime.

It is not a weakly prime, because it can be changed into another prime (12471649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6235821 + 6235822.

It is an arithmetic number, because the mean of its divisors is an integer number (6235822).

Almost surely, 2^12471643 is an apocalyptic number.

12471643 is a deficient number, since it is larger than the sum of its proper divisors (1).

12471643 is an equidigital number, since it uses as much as digits as its factorization.

12471643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 12471643 is about 3531.5213435572. The cubic root of 12471643 is about 231.9038134265.

The spelling of 12471643 in words is "twelve million, four hundred seventy-one thousand, six hundred forty-three".