12666734 has 16 divisors (see below), whose sum is σ = 20318688. Its totient is φ = 5901312.

The previous prime is 12666727. The next prime is 12666763. The reversal of 12666734 is 43766621.

12666734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12666694 and 12666703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1694 + ... + 5310.

It is an arithmetic number, because the mean of its divisors is an integer number (1269918).

Almost surely, 2^12666734 is an apocalyptic number.

12666734 is a deficient number, since it is larger than the sum of its proper divisors (7651954).

12666734 is a wasteful number, since it uses less digits than its factorization.

12666734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739.

The product of its digits is 36288, while the sum is 35.

The square root of 12666734 is about 3559.0355435146. The cubic root of 12666734 is about 233.1067682867.

It can be divided in two parts, 1266 and 6734, that added together give a cube (8000 = 20³).

The spelling of 12666734 in words is "twelve million, six hundred sixty-six thousand, seven hundred thirty-four".