12423771 has 6 divisors (see below), whose sum is σ = 17945460. Its totient is φ = 8282508.

The previous prime is 12423767. The next prime is 12423781. The reversal of 12423771 is 17732421.

It is a happy number.

12423771 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12423771 - 2² = 12423767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12423731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 690201 + ... + 690218.

It is an arithmetic number, because the mean of its divisors is an integer number (2990910).

Almost surely, 2^12423771 is an apocalyptic number.

12423771 is a deficient number, since it is larger than the sum of its proper divisors (5521689).

12423771 is a wasteful number, since it uses less digits than its factorization.

12423771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380425 (or 1380422 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 12423771 is about 3524.7370114662. The cubic root of 12423771 is about 231.6067145270.

The spelling of 12423771 in words is "twelve million, four hundred twenty-three thousand, seven hundred seventy-one".