12647903 has 2 divisors, whose sum is σ = 12647904. Its totient is φ = 12647902.

The previous prime is 12647897. The next prime is 12647909. The reversal of 12647903 is 30974621.

It is a balanced prime because it is at equal distance from previous prime (12647897) and next prime (12647909).

It is a cyclic number.

It is not a de Polignac number, because 12647903 - 2⁸ = 12647647 is a prime.

It is a Chen prime.

It is equal to p₈₂₇₇₅₃ and since 12647903 and 827753 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12647903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12647909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6323951 + 6323952.

It is an arithmetic number, because the mean of its divisors is an integer number (6323952).

Almost surely, 2^12647903 is an apocalyptic number.

12647903 is a deficient number, since it is larger than the sum of its proper divisors (1).

12647903 is an equidigital number, since it uses as much as digits as its factorization.

12647903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 12647903 is about 3556.3890394612. The cubic root of 12647903 is about 232.9911949370.

Adding to 12647903 its sum of digits (32), we get a triangular number (12647935 = T₅₀₂₉).

The spelling of 12647903 in words is "twelve million, six hundred forty-seven thousand, nine hundred three".