12975973 has 4 divisors (see below), whose sum is σ = 12985900. Its totient is φ = 12966048.

The previous prime is 12975961. The next prime is 12975983. The reversal of 12975973 is 37957921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3034564 + 9941409 = 1742^2 + 3153^2 .

It is a cyclic number.

It is not a de Polignac number, because 12975973 - 2¹⁷ = 12844901 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 (12975953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2640 + ... + 5737.

It is an arithmetic number, because the mean of its divisors is an integer number (3246475).

Almost surely, 2^12975973 is an apocalyptic number.

It is an amenable number.

12975973 is a deficient number, since it is larger than the sum of its proper divisors (9927).

12975973 is an equidigital number, since it uses as much as digits as its factorization.

12975973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9926.

The product of its digits is 119070, while the sum is 43.

The square root of 12975973 is about 3602.2177890849. The cubic root of 12975973 is about 234.9885191313.

The spelling of 12975973 in words is "twelve million, nine hundred seventy-five thousand, nine hundred seventy-three".