12973947 has 16 divisors (see below), whose sum is σ = 20067072. Its totient is φ = 7302240.

The previous prime is 12973937. The next prime is 12973949. The reversal of 12973947 is 74937921.

It is not a de Polignac number, because 12973947 - 2⁴ = 12973931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12973899 and 12973908.

It is not an unprimeable number, because it can be changed into a prime (12973949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3204 + ... + 6017.

It is an arithmetic number, because the mean of its divisors is an integer number (1254192).

Almost surely, 2^12973947 is an apocalyptic number.

12973947 is a deficient number, since it is larger than the sum of its proper divisors (7093125).

12973947 is an equidigital number, since it uses as much as digits as its factorization.

12973947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298.

The product of its digits is 95256, while the sum is 42.

The square root of 12973947 is about 3601.9365624619. The cubic root of 12973947 is about 234.9762885386.

The spelling of 12973947 in words is "twelve million, nine hundred seventy-three thousand, nine hundred forty-seven".