12704645 has 8 divisors (see below), whose sum is σ = 15388704. Its totient is φ = 10068304.

The previous prime is 12704641. The next prime is 12704663. The reversal of 12704645 is 54640721.

12704645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12704645 - 2² = 12704641 is a prime.

It is a super-2 number, since 2×12704645² = 322816009152050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12704641) 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, 11339 + ... + 12408.

It is an arithmetic number, because the mean of its divisors is an integer number (1923588).

Almost surely, 2^12704645 is an apocalyptic number.

It is an amenable number.

12704645 is a deficient number, since it is larger than the sum of its proper divisors (2684059).

12704645 is a wasteful number, since it uses less digits than its factorization.

12704645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23859.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 12704645 is about 3564.3575858772. The cubic root of 12704645 is about 233.3390962295.

The spelling of 12704645 in words is "twelve million, seven hundred four thousand, six hundred forty-five".