12704408 has 8 divisors (see below), whose sum is σ = 23820780. Its totient is φ = 6352200.

The previous prime is 12704401. The next prime is 12704413. The reversal of 12704408 is 80440721.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12704408² = 322803965260928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12704401) 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 as a sum of consecutive naturals, namely, 794018 + ... + 794033.

Almost surely, 2^12704408 is an apocalyptic number.

It is an amenable number.

12704408 is a deficient number, since it is larger than the sum of its proper divisors (11116372).

12704408 is a wasteful number, since it uses less digits than its factorization.

12704408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588057 (or 1588053 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 12704408 is about 3564.3243398995. The cubic root of 12704408 is about 233.3376452718.

The spelling of 12704408 in words is "twelve million, seven hundred four thousand, four hundred eight".