12772177 has 4 divisors (see below), whose sum is σ = 13933296. Its totient is φ = 11611060.

The previous prime is 12772171. The next prime is 12772181. The reversal of 12772177 is 77127721.

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 12772177 - 2³ = 12772169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12772171) 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 3 ways as a sum of consecutive naturals, for example, 580543 + ... + 580564.

It is an arithmetic number, because the mean of its divisors is an integer number (3483324).

Almost surely, 2^12772177 is an apocalyptic number.

It is an amenable number.

12772177 is a deficient number, since it is larger than the sum of its proper divisors (1161119).

12772177 is a wasteful number, since it uses less digits than its factorization.

12772177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161118.

The product of its digits is 9604, while the sum is 34.

The square root of 12772177 is about 3573.8182662245. The cubic root of 12772177 is about 233.7518066338.

Adding to 12772177 its reverse (77127721), we get a palindrome (89899898).

The spelling of 12772177 in words is "twelve million, seven hundred seventy-two thousand, one hundred seventy-seven".