11711217 has 16 divisors (see below), whose sum is σ = 18063360. Its totient is φ = 6610512.

The previous prime is 11711213. The next prime is 11711221. The reversal of 11711217 is 71211711.

It is an interprime number because it is at equal distance from previous prime (11711213) and next prime (11711221).

It is not a de Polignac number, because 11711217 - 2² = 11711213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 11711193 and 11711202.

It is not an unprimeable number, because it can be changed into a prime (11711213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (1128960).

Almost surely, 2^11711217 is an apocalyptic number.

It is an amenable number.

11711217 is a deficient number, since it is larger than the sum of its proper divisors (6352143).

11711217 is an equidigital number, since it uses as much as digits as its factorization.

11711217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812.

The product of its digits is 98, while the sum is 21.

The square root of 11711217 is about 3422.1655424599. The cubic root of 11711217 is about 227.0913939138.

Adding to 11711217 its reverse (71211711), we get a palindrome (82922928).

The spelling of 11711217 in words is "eleven million, seven hundred eleven thousand, two hundred seventeen".