12403973 has 2 divisors, whose sum is σ = 12403974. Its totient is φ = 12403972.

The previous prime is 12403957. The next prime is 12404003. The reversal of 12403973 is 37930421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11710084 + 693889 = 3422^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 12403973 - 2⁴ = 12403957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12403933) 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, 6201986 + 6201987.

It is an arithmetic number, because the mean of its divisors is an integer number (6201987).

Almost surely, 2^12403973 is an apocalyptic number.

It is an amenable number.

12403973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12403973 is an equidigital number, since it uses as much as digits as its factorization.

12403973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 12403973 is about 3521.9274552438. The cubic root of 12403973 is about 231.4836228729.

The spelling of 12403973 in words is "twelve million, four hundred three thousand, nine hundred seventy-three".