12872213 has 8 divisors (see below), whose sum is σ = 13661208. Its totient is φ = 12086784.

The previous prime is 12872183. The next prime is 12872227. The reversal of 12872213 is 31227821.

It can be written as a sum of positive squares in 4 ways, for example, as 10804369 + 2067844 = 3287^2 + 1438^2 .

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 12872213 - 2⁶ = 12872149 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 (12872413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11945 + ... + 12977.

It is an arithmetic number, because the mean of its divisors is an integer number (1707651).

Almost surely, 2^12872213 is an apocalyptic number.

It is an amenable number.

12872213 is a deficient number, since it is larger than the sum of its proper divisors (788995).

12872213 is a wasteful number, since it uses less digits than its factorization.

12872213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783.

The product of its digits is 1344, while the sum is 26.

The square root of 12872213 is about 3587.7866436008. The cubic root of 12872213 is about 234.3604945808.

The spelling of 12872213 in words is "twelve million, eight hundred seventy-two thousand, two hundred thirteen".