12389973 has 16 divisors (see below), whose sum is σ = 16887936. Its totient is φ = 8078400.

The previous prime is 12389963. The next prime is 12389981. The reversal of 12389973 is 37998321.

It is not a de Polignac number, because 12389973 - 2¹⁰ = 12388949 is a prime.

It is a super-2 number, since 2×12389973² = 307022861881458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31011 + ... + 31407.

It is an arithmetic number, because the mean of its divisors is an integer number (1055496).

Almost surely, 2^12389973 is an apocalyptic number.

It is an amenable number.

12389973 is a deficient number, since it is larger than the sum of its proper divisors (4497963).

12389973 is a wasteful number, since it uses less digits than its factorization.

12389973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its digits is 81648, while the sum is 42.

The square root of 12389973 is about 3519.9393460683. The cubic root of 12389973 is about 231.3965004985.

It can be divided in two parts, 1238 and 9973, that added together give a palindrome (11211).

The spelling of 12389973 in words is "twelve million, three hundred eighty-nine thousand, nine hundred seventy-three".