12772913 has 4 divisors (see below), whose sum is σ = 12790848. Its totient is φ = 12754980.

The previous prime is 12772909. The next prime is 12772919. The reversal of 12772913 is 31927721.

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 12772913 - 2² = 12772909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12772913.

It is not an unprimeable number, because it can be changed into a prime (12772919) 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, 7853 + ... + 9338.

It is an arithmetic number, because the mean of its divisors is an integer number (3197712).

Almost surely, 2^12772913 is an apocalyptic number.

It is an amenable number.

12772913 is a deficient number, since it is larger than the sum of its proper divisors (17935).

12772913 is an equidigital number, since it uses as much as digits as its factorization.

12772913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17934.

The product of its digits is 5292, while the sum is 32.

The square root of 12772913 is about 3573.9212358417. The cubic root of 12772913 is about 233.7562965503.

The spelling of 12772913 in words is "twelve million, seven hundred seventy-two thousand, nine hundred thirteen".