12936217 has 4 divisors (see below), whose sum is σ = 14784256. Its totient is φ = 11088180.

The previous prime is 12936191. The next prime is 12936221. The reversal of 12936217 is 71263921.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71263921 = 61 ⋅1168261.

It is a cyclic number.

It is not a de Polignac number, because 12936217 - 2¹¹ = 12934169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12936227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924009 + ... + 924022.

It is an arithmetic number, because the mean of its divisors is an integer number (3696064).

Almost surely, 2^12936217 is an apocalyptic number.

It is an amenable number.

12936217 is a deficient number, since it is larger than the sum of its proper divisors (1848039).

12936217 is an equidigital number, since it uses as much as digits as its factorization.

12936217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848038.

The product of its digits is 4536, while the sum is 31.

The square root of 12936217 is about 3596.6952887338. The cubic root of 12936217 is about 234.7482863880.

The spelling of 12936217 in words is "twelve million, nine hundred thirty-six thousand, two hundred seventeen".