12653943 has 8 divisors (see below), whose sum is σ = 17760000. Its totient is φ = 7991928.

The previous prime is 12653939. The next prime is 12653957. The reversal of 12653943 is 34935621.

12653943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12653943 - 2² = 12653939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12653903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110943 + ... + 111056.

It is an arithmetic number, because the mean of its divisors is an integer number (2220000).

Almost surely, 2^12653943 is an apocalyptic number.

12653943 is a deficient number, since it is larger than the sum of its proper divisors (5106057).

12653943 is a wasteful number, since it uses less digits than its factorization.

12653943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222021.

The product of its digits is 19440, while the sum is 33.

The square root of 12653943 is about 3557.2381140430. The cubic root of 12653943 is about 233.0282773125.

The spelling of 12653943 in words is "twelve million, six hundred fifty-three thousand, nine hundred forty-three".