12704646 has 8 divisors (see below), whose sum is σ = 25409304. Its totient is φ = 4234880.

The previous prime is 12704641. The next prime is 12704663. The reversal of 12704646 is 64640721.

12704646 is digitally balanced in base 2 and base 4, because in such bases 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.

12704646 is an admirable number.

It is a super-2 number, since 2×12704646² = 322816059970632, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1058715 + ... + 1058726.

It is an arithmetic number, because the mean of its divisors is an integer number (3176163).

Almost surely, 2^12704646 is an apocalyptic number.

12704646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12704646 is a wasteful number, since it uses less digits than its factorization.

12704646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117446.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 12704646 is about 3564.3577261549. The cubic root of 12704646 is about 233.3391023517.

The spelling of 12704646 in words is "twelve million, seven hundred four thousand, six hundred forty-six".