12307973 has 4 divisors (see below), whose sum is σ = 12315168. Its totient is φ = 12300780.

The previous prime is 12307957. The next prime is 12307993. The reversal of 12307973 is 37970321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12307973 - 2⁴ = 12307957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12307903) 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 3 ways as a sum of consecutive naturals, for example, 608 + ... + 4998.

It is an arithmetic number, because the mean of its divisors is an integer number (3078792).

Almost surely, 2^12307973 is an apocalyptic number.

It is an amenable number.

12307973 is a deficient number, since it is larger than the sum of its proper divisors (7195).

12307973 is an equidigital number, since it uses as much as digits as its factorization.

12307973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 12307973 is about 3508.2720818089. The cubic root of 12307973 is about 230.8848898324.

The spelling of 12307973 in words is "twelve million, three hundred seven thousand, nine hundred seventy-three".