12656423 has 8 divisors (see below), whose sum is σ = 13784400. Its totient is φ = 11550528.

The previous prime is 12656419. The next prime is 12656431. The reversal of 12656423 is 32465621.

12656423 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 a cyclic number.

It is not a de Polignac number, because 12656423 - 2² = 12656419 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 (12656443) 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, 4313 + ... + 6626.

It is an arithmetic number, because the mean of its divisors is an integer number (1723050).

Almost surely, 2^12656423 is an apocalyptic number.

12656423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12656423 is a deficient number, since it is larger than the sum of its proper divisors (1127977).

12656423 is a wasteful number, since it uses less digits than its factorization.

12656423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11041.

The product of its digits is 8640, while the sum is 29.

The square root of 12656423 is about 3557.5866820079. The cubic root of 12656423 is about 233.0434997713.

The spelling of 12656423 in words is "twelve million, six hundred fifty-six thousand, four hundred twenty-three".