12704556 has 48 divisors (see below), whose sum is σ = 31223808. Its totient is φ = 4012800.

The previous prime is 12704551. The next prime is 12704567. The reversal of 12704556 is 65540721.

12704556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×12704556³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12704551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52596 + ... + 52836.

It is an arithmetic number, because the mean of its divisors is an integer number (650496).

Almost surely, 2^12704556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12704556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15611904).

12704556 is an abundant number, since it is smaller than the sum of its proper divisors (18519252).

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

12704556 is a wasteful number, since it uses less digits than its factorization.

12704556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 12704556 is about 3564.3451011371. The cubic root of 12704556 is about 233.3385513572.

The spelling of 12704556 in words is "twelve million, seven hundred four thousand, five hundred fifty-six".