12717904 has 20 divisors (see below), whose sum is σ = 26090964. Its totient is φ = 5984768.

The previous prime is 12717889. The next prime is 12717917. The reversal of 12717904 is 40971721.

It can be written as a sum of positive squares in 2 ways, for example, as 10890000 + 1827904 = 3300^2 + 1352^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23107 + ... + 23650.

Almost surely, 2^12717904 is an apocalyptic number.

It is an amenable number.

12717904 is an abundant number, since it is smaller than the sum of its proper divisors (13373060).

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

12717904 is a wasteful number, since it uses less digits than its factorization.

12717904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46782 (or 46776 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 12717904 is about 3566.2170433107. The cubic root of 12717904 is about 233.4202415487.

The spelling of 12717904 in words is "twelve million, seven hundred seventeen thousand, nine hundred four".