12773289 has 4 divisors (see below), whose sum is σ = 17031056. Its totient is φ = 8515524.

The previous prime is 12773287. The next prime is 12773291. The reversal of 12773289 is 98237721.

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 an interprime number because it is at equal distance from previous prime (12773287) and next prime (12773291).

It is not a de Polignac number, because 12773289 - 2¹ = 12773287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12773287) 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, 2128879 + ... + 2128884.

It is an arithmetic number, because the mean of its divisors is an integer number (4257764).

Almost surely, 2^12773289 is an apocalyptic number.

It is an amenable number.

12773289 is a deficient number, since it is larger than the sum of its proper divisors (4257767).

12773289 is an equidigital number, since it uses as much as digits as its factorization.

12773289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257766.

The product of its digits is 42336, while the sum is 39.

The square root of 12773289 is about 3573.9738387403. The cubic root of 12773289 is about 233.7585902455.

The spelling of 12773289 in words is "twelve million, seven hundred seventy-three thousand, two hundred eighty-nine".