12772819 has 4 divisors (see below), whose sum is σ = 12781440. Its totient is φ = 12764200.

The previous prime is 12772817. The next prime is 12772871. The reversal of 12772819 is 91827721.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12772819 - 2¹ = 12772817 is a prime.

It is a super-4 number, since 4×12772819⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12772811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459 + ... + 5260.

It is an arithmetic number, because the mean of its divisors is an integer number (3195360).

Almost surely, 2^12772819 is an apocalyptic number.

12772819 is a deficient number, since it is larger than the sum of its proper divisors (8621).

12772819 is an equidigital number, since it uses as much as digits as its factorization.

12772819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8620.

The product of its digits is 14112, while the sum is 37.

The square root of 12772819 is about 3573.9080849960. The cubic root of 12772819 is about 233.7557231195.

It can be divided in two parts, 1277 and 2819, that added together give a 12-th power (4096 = 2¹²).

The spelling of 12772819 in words is "twelve million, seven hundred seventy-two thousand, eight hundred nineteen".