11670217 has 4 divisors (see below), whose sum is σ = 12567940. Its totient is φ = 10772496.

The previous prime is 11670193. The next prime is 11670221. The reversal of 11670217 is 71207611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7733961 + 3936256 = 2781^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 11670217 - 2¹¹ = 11668169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11670191 and 11670200.

It is not an unprimeable number, because it can be changed into a prime (11670227) 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, 448842 + ... + 448867.

It is an arithmetic number, because the mean of its divisors is an integer number (3141985).

Almost surely, 2^11670217 is an apocalyptic number.

It is an amenable number.

11670217 is a deficient number, since it is larger than the sum of its proper divisors (897723).

11670217 is an equidigital number, since it uses as much as digits as its factorization.

11670217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897722.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 11670217 is about 3416.1699313705. The cubic root of 11670217 is about 226.8260746699.

Adding to 11670217 its reverse (71207611), we get a palindrome (82877828).

The spelling of 11670217 in words is "eleven million, six hundred seventy thousand, two hundred seventeen".