12917277 has 12 divisors (see below), whose sum is σ = 18914844. Its totient is φ = 8493120.

The previous prime is 12917273. The next prime is 12917291. The reversal of 12917277 is 77271921.

It can be written as a sum of positive squares in 2 ways, for example, as 7257636 + 5659641 = 2694^2 + 2379^2 .

It is not a de Polignac number, because 12917277 - 2² = 12917273 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12917273) 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 11 ways as a sum of consecutive naturals, for example, 9174 + ... + 10487.

It is an arithmetic number, because the mean of its divisors is an integer number (1576237).

Almost surely, 2^12917277 is an apocalyptic number.

It is an amenable number.

12917277 is a deficient number, since it is larger than the sum of its proper divisors (5997567).

12917277 is a wasteful number, since it uses less digits than its factorization.

12917277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19740 (or 19737 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The square root of 12917277 is about 3594.0613517301. The cubic root of 12917277 is about 234.6336649295.

The spelling of 12917277 in words is "twelve million, nine hundred seventeen thousand, two hundred seventy-seven".