12499983 has 6 divisors (see below), whose sum is σ = 18055544. Its totient is φ = 8333316.

The previous prime is 12499919. The next prime is 12499987. The reversal of 12499983 is 38999421.

12499983 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12499983 - 2⁶ = 12499919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 694435 + ... + 694452.

Almost surely, 2^12499983 is an apocalyptic number.

12499983 is a deficient number, since it is larger than the sum of its proper divisors (5555561).

12499983 is a wasteful number, since it uses less digits than its factorization.

12499983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388893 (or 1388890 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 12499983 is about 3535.5315017689. The cubic root of 12499983 is about 232.0793364712.

The spelling of 12499983 in words is "twelve million, four hundred ninety-nine thousand, nine hundred eighty-three".