12856573 has 8 divisors (see below), whose sum is σ = 13702392. Its totient is φ = 12020736.

The previous prime is 12856567. The next prime is 12856579. The reversal of 12856573 is 37565821.

12856573 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12856567) and next prime (12856579).

It can be written as a sum of positive squares in 4 ways, for example, as 480249 + 12376324 = 693^2 + 3518^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12856573 - 2¹⁷ = 12725501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856579) 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 7 ways as a sum of consecutive naturals, for example, 261 + ... + 5077.

It is an arithmetic number, because the mean of its divisors is an integer number (1712799).

Almost surely, 2^12856573 is an apocalyptic number.

It is an amenable number.

12856573 is a deficient number, since it is larger than the sum of its proper divisors (845819).

12856573 is a wasteful number, since it uses less digits than its factorization.

12856573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991.

The product of its digits is 50400, while the sum is 37.

The square root of 12856573 is about 3585.6063643406. The cubic root of 12856573 is about 234.2655385270.

The spelling of 12856573 in words is "twelve million, eight hundred fifty-six thousand, five hundred seventy-three".