12646972 has 24 divisors (see below), whose sum is σ = 24068016. Its totient is φ = 5779968.

The previous prime is 12646969. The next prime is 12646979. The reversal of 12646972 is 27964621.

12646972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646979) 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, 4428 + ... + 6700.

It is an arithmetic number, because the mean of its divisors is an integer number (1002834).

Almost surely, 2^12646972 is an apocalyptic number.

It is an amenable number.

12646972 is a deficient number, since it is larger than the sum of its proper divisors (11421044).

12646972 is a wasteful number, since it uses less digits than its factorization.

12646972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2395 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 12646972 is about 3556.2581458606. The cubic root of 12646972 is about 232.9854780440.

The spelling of 12646972 in words is "twelve million, six hundred forty-six thousand, nine hundred seventy-two".