12656983 has 8 divisors (see below), whose sum is σ = 13575600. Its totient is φ = 11763648.

The previous prime is 12656939. The next prime is 12657011. The reversal of 12656983 is 38965621.

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

It is a cyclic number.

It is not a de Polignac number, because 12656983 - 2¹⁷ = 12525911 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 (12656933) 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, 5278 + ... + 7291.

It is an arithmetic number, because the mean of its divisors is an integer number (1696950).

Almost surely, 2^12656983 is an apocalyptic number.

12656983 is a deficient number, since it is larger than the sum of its proper divisors (918617).

12656983 is a wasteful number, since it uses less digits than its factorization.

12656983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12641.

The product of its digits is 77760, while the sum is 40.

The square root of 12656983 is about 3557.6653861767. The cubic root of 12656983 is about 233.0469368255.

The spelling of 12656983 in words is "twelve million, six hundred fifty-six thousand, nine hundred eighty-three".