12389503 has 16 divisors (see below), whose sum is σ = 14817600. Its totient is φ = 10348800.

The previous prime is 12389497. The next prime is 12389537. The reversal of 12389503 is 30598321.

It is a happy number.

It is not a de Polignac number, because 12389503 - 2⁹ = 12388991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13623 + ... + 14503.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 2^12389503 is an apocalyptic number.

12389503 is a deficient number, since it is larger than the sum of its proper divisors (2428097).

12389503 is an frugal number, since it uses more digits than its factorization.

12389503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 12389503 is about 3519.8725829211. The cubic root of 12389503 is about 231.3935745376.

The spelling of 12389503 in words is "twelve million, three hundred eighty-nine thousand, five hundred three".