12917377 has 4 divisors (see below), whose sum is σ = 14091696. Its totient is φ = 11743060.

The previous prime is 12917357. The next prime is 12917389. The reversal of 12917377 is 77371921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12917377 - 2⁷ = 12917249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12917357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587143 + ... + 587164.

It is an arithmetic number, because the mean of its divisors is an integer number (3522924).

Almost surely, 2^12917377 is an apocalyptic number.

It is an amenable number.

12917377 is a deficient number, since it is larger than the sum of its proper divisors (1174319).

12917377 is a wasteful number, since it uses less digits than its factorization.

12917377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174318.

The product of its digits is 18522, while the sum is 37.

The square root of 12917377 is about 3594.0752635414. The cubic root of 12917377 is about 234.6342704055.

It can be divided in two parts, 1291 and 7377, that added together give a palindrome (8668).

The spelling of 12917377 in words is "twelve million, nine hundred seventeen thousand, three hundred seventy-seven".