12576217 has 8 divisors (see below), whose sum is σ = 13014792. Its totient is φ = 12144000.

The previous prime is 12576199. The next prime is 12576229. The reversal of 12576217 is 71267521.

It can be written as a sum of positive squares in 4 ways, for example, as 3956121 + 8620096 = 1989^2 + 2936^2 .

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 12576217 - 2¹⁵ = 12543449 is a prime.

It is a super-2 number, since 2×12576217² = 316322468062178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12576257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2623 + ... + 5659.

It is an arithmetic number, because the mean of its divisors is an integer number (1626849).

Almost surely, 2^12576217 is an apocalyptic number.

It is an amenable number.

12576217 is a deficient number, since it is larger than the sum of its proper divisors (438575).

12576217 is a wasteful number, since it uses less digits than its factorization.

12576217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179.

The product of its digits is 5880, while the sum is 31.

The square root of 12576217 is about 3546.2962369210. The cubic root of 12576217 is about 232.5501768606.

The spelling of 12576217 in words is "twelve million, five hundred seventy-six thousand, two hundred seventeen".