12619217 has 8 divisors (see below), whose sum is σ = 13640424. Its totient is φ = 11605248.

The previous prime is 12619213. The next prime is 12619231. The reversal of 12619217 is 71291621.

It can be written as a sum of positive squares in 4 ways, for example, as 5564881 + 7054336 = 2359^2 + 2656^2 .

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 12619217 - 2² = 12619213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12619217.

It is not an unprimeable number, because it can be changed into a prime (12619213) 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, 2153 + ... + 5465.

It is an arithmetic number, because the mean of its divisors is an integer number (1705053).

Almost surely, 2^12619217 is an apocalyptic number.

It is an amenable number.

12619217 is a deficient number, since it is larger than the sum of its proper divisors (1021207).

12619217 is a wasteful number, since it uses less digits than its factorization.

12619217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619.

The product of its digits is 1512, while the sum is 29.

The square root of 12619217 is about 3552.3537267564. The cubic root of 12619217 is about 232.8149168435.

The spelling of 12619217 in words is "twelve million, six hundred nineteen thousand, two hundred seventeen".