12860917 has 2 divisors, whose sum is σ = 12860918. Its totient is φ = 12860916.

The previous prime is 12860899. The next prime is 12860951. The reversal of 12860917 is 71906821.

It is a happy number.

It is an a-pointer prime, because the next prime (12860951) can be obtained adding 12860917 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12859396 + 1521 = 3586^2 + 39^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12860917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12860977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6430458 + 6430459.

It is an arithmetic number, because the mean of its divisors is an integer number (6430459).

Almost surely, 2^12860917 is an apocalyptic number.

It is an amenable number.

12860917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12860917 is an equidigital number, since it uses as much as digits as its factorization.

12860917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 12860917 is about 3586.2120684644. The cubic root of 12860917 is about 234.2919202309.

The spelling of 12860917 in words is "twelve million, eight hundred sixty thousand, nine hundred seventeen".