12712423 has 4 divisors (see below), whose sum is σ = 13056040. Its totient is φ = 12368808.

The previous prime is 12712409. The next prime is 12712429. The reversal of 12712423 is 32421721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32421721 = 89 ⋅364289.

It is a cyclic number.

It is not a de Polignac number, because 12712423 - 2¹³ = 12704231 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 12712394 and 12712403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712429) 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, 171753 + ... + 171826.

It is an arithmetic number, because the mean of its divisors is an integer number (3264010).

Almost surely, 2^12712423 is an apocalyptic number.

12712423 is a deficient number, since it is larger than the sum of its proper divisors (343617).

12712423 is an equidigital number, since it uses as much as digits as its factorization.

12712423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343616.

The product of its digits is 672, while the sum is 22.

The square root of 12712423 is about 3565.4484991372. The cubic root of 12712423 is about 233.3867045713.

The spelling of 12712423 in words is "twelve million, seven hundred twelve thousand, four hundred twenty-three".