12704456 has 16 divisors (see below), whose sum is σ = 24157440. Its totient is φ = 6262480.

The previous prime is 12704453. The next prime is 12704467. The reversal of 12704456 is 65440721.

It is a super-2 number, since 2×12704456² = 322806404511872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12704453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10616 + ... + 11751.

It is an arithmetic number, because the mean of its divisors is an integer number (1509840).

Almost surely, 2^12704456 is an apocalyptic number.

It is an amenable number.

12704456 is a deficient number, since it is larger than the sum of its proper divisors (11452984).

12704456 is a wasteful number, since it uses less digits than its factorization.

12704456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22444 (or 22440 counting only the distinct ones).

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

The square root of 12704456 is about 3564.3310732871. The cubic root of 12704456 is about 233.3379391381.

The spelling of 12704456 in words is "twelve million, seven hundred four thousand, four hundred fifty-six".