12307972 has 12 divisors (see below), whose sum is σ = 22672720. Its totient is φ = 5830056.

The previous prime is 12307957. The next prime is 12307993. The reversal of 12307972 is 27970321.

12307972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80898 + ... + 81049.

Almost surely, 2^12307972 is an apocalyptic number.

It is an amenable number.

12307972 is a deficient number, since it is larger than the sum of its proper divisors (10364748).

12307972 is a wasteful number, since it uses less digits than its factorization.

12307972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161970 (or 161968 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 12307972 is about 3508.2719392886. The cubic root of 12307972 is about 230.8848835794.

It can be divided in two parts, 123079 and 72, that multiplied together give a palindrome (8861688).

The spelling of 12307972 in words is "twelve million, three hundred seven thousand, nine hundred seventy-two".