12648969 has 24 divisors (see below), whose sum is σ = 19768320. Its totient is φ = 7763328.

The previous prime is 12648949. The next prime is 12648973. The reversal of 12648969 is 96984621.

It is a happy number.

12648969 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 12648969 - 2⁷ = 12648841 is a prime.

It is a super-2 number, since 2×12648969² = 319992833525922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12648949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6312 + ... + 8070.

It is an arithmetic number, because the mean of its divisors is an integer number (823680).

Almost surely, 2^12648969 is an apocalyptic number.

It is an amenable number.

12648969 is a deficient number, since it is larger than the sum of its proper divisors (7119351).

12648969 is a wasteful number, since it uses less digits than its factorization.

12648969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1826 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 12648969 is about 3556.5389074211. The cubic root of 12648969 is about 232.9977404657.

The spelling of 12648969 in words is "twelve million, six hundred forty-eight thousand, nine hundred sixty-nine".