12972893 has 4 divisors (see below), whose sum is σ = 13248960. Its totient is φ = 12696828.

The previous prime is 12972871. The next prime is 12972901. The reversal of 12972893 is 39827921.

It is a happy number.

12972893 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 39827921 = 7 ⋅5689703.

It is a cyclic number.

It is not a de Polignac number, because 12972893 - 2⁸ = 12972637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12972893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12972803) 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, 137963 + ... + 138056.

It is an arithmetic number, because the mean of its divisors is an integer number (3312240).

Almost surely, 2^12972893 is an apocalyptic number.

It is an amenable number.

12972893 is a deficient number, since it is larger than the sum of its proper divisors (276067).

12972893 is an equidigital number, since it uses as much as digits as its factorization.

12972893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276066.

The product of its digits is 54432, while the sum is 41.

The square root of 12972893 is about 3601.7902493066. The cubic root of 12972893 is about 234.9699252293.

The spelling of 12972893 in words is "twelve million, nine hundred seventy-two thousand, eight hundred ninety-three".