12717913 has 16 divisors (see below), whose sum is σ = 14224896. Its totient is φ = 11295360.

The previous prime is 12717889. The next prime is 12717917. The reversal of 12717913 is 31971721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12717913 is a prime.

It is a super-2 number, since 2×12717913² = 323490622151138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12717917) 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 15 ways as a sum of consecutive naturals, for example, 56920 + ... + 57142.

It is an arithmetic number, because the mean of its divisors is an integer number (889056).

Almost surely, 2^12717913 is an apocalyptic number.

12717913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12717913 is a deficient number, since it is larger than the sum of its proper divisors (1506983).

12717913 is a wasteful number, since it uses less digits than its factorization.

12717913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its digits is 2646, while the sum is 31.

The square root of 12717913 is about 3566.2183051518. The cubic root of 12717913 is about 233.4202966097.

The spelling of 12717913 in words is "twelve million, seven hundred seventeen thousand, nine hundred thirteen".