12772319 has 4 divisors (see below), whose sum is σ = 14596944. Its totient is φ = 10947696.

The previous prime is 12772307. The next prime is 12772339. The reversal of 12772319 is 91327721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12772319 - 2⁴ = 12772303 is a prime.

It is a super-2 number, since 2×12772319² = 326264265275522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772339) 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, 912302 + ... + 912315.

It is an arithmetic number, because the mean of its divisors is an integer number (3649236).

Almost surely, 2^12772319 is an apocalyptic number.

12772319 is a deficient number, since it is larger than the sum of its proper divisors (1824625).

12772319 is an equidigital number, since it uses as much as digits as its factorization.

12772319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824624.

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

The square root of 12772319 is about 3573.8381328762. The cubic root of 12772319 is about 233.7526729083.

The spelling of 12772319 in words is "twelve million, seven hundred seventy-two thousand, three hundred nineteen".