12947893 has 4 divisors (see below), whose sum is σ = 14797600. Its totient is φ = 11098188.

The previous prime is 12947887. The next prime is 12947899. The reversal of 12947893 is 39874921.

12947893 is digitally balanced in base 2, 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.

It is an interprime number because it is at equal distance from previous prime (12947887) and next prime (12947899).

It is a cyclic number.

It is not a de Polignac number, because 12947893 - 2⁵ = 12947861 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 (12947899) 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, 924843 + ... + 924856.

It is an arithmetic number, because the mean of its divisors is an integer number (3699400).

Almost surely, 2^12947893 is an apocalyptic number.

It is an amenable number.

12947893 is a deficient number, since it is larger than the sum of its proper divisors (1849707).

12947893 is an equidigital number, since it uses as much as digits as its factorization.

12947893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849706.

The product of its digits is 108864, while the sum is 43.

The square root of 12947893 is about 3598.3180793254. The cubic root of 12947893 is about 234.8188916963.

The spelling of 12947893 in words is "twelve million, nine hundred forty-seven thousand, eight hundred ninety-three".