12423727 has 4 divisors (see below), whose sum is σ = 12468856. Its totient is φ = 12378600.

The previous prime is 12423713. The next prime is 12423731. The reversal of 12423727 is 72732421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72732421 = 3061 ⋅23761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12423727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12423695 and 12423704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423767) 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, 22149 + ... + 22702.

It is an arithmetic number, because the mean of its divisors is an integer number (3117214).

Almost surely, 2^12423727 is an apocalyptic number.

12423727 is a deficient number, since it is larger than the sum of its proper divisors (45129).

12423727 is an equidigital number, since it uses as much as digits as its factorization.

12423727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45128.

The product of its digits is 4704, while the sum is 28.

The square root of 12423727 is about 3524.7307698603. The cubic root of 12423727 is about 231.6064411074.

The spelling of 12423727 in words is "twelve million, four hundred twenty-three thousand, seven hundred twenty-seven".