12980893 has 4 divisors (see below), whose sum is σ = 13428540. Its totient is φ = 12533248.

The previous prime is 12980879. The next prime is 12980899. The reversal of 12980893 is 39808921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39808921 = 67 ⋅594163.

It can be written as a sum of positive squares in 2 ways, for example, as 2502724 + 10478169 = 1582^2 + 3237^2 .

It is a cyclic number.

It is not a de Polignac number, because 12980893 - 2⁹ = 12980381 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12980899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223780 + ... + 223837.

It is an arithmetic number, because the mean of its divisors is an integer number (3357135).

Almost surely, 2^12980893 is an apocalyptic number.

It is an amenable number.

12980893 is a deficient number, since it is larger than the sum of its proper divisors (447647).

12980893 is an equidigital number, since it uses as much as digits as its factorization.

12980893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447646.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 12980893 is about 3602.9006369868. The cubic root of 12980893 is about 235.0182149756.

The spelling of 12980893 in words is "twelve million, nine hundred eighty thousand, eight hundred ninety-three".