11216817 has 6 divisors (see below), whose sum is σ = 16202082. Its totient is φ = 7477872.

The previous prime is 11216813. The next prime is 11216819. The reversal of 11216817 is 71861211.

It can be written as a sum of positive squares in only one way, i.e., 7667361 + 3549456 = 2769^2 + 1884^2 .

It is not a de Polignac number, because 11216817 - 2² = 11216813 is a prime.

It is a super-2 number, since 2×11216817² = 251633967222978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11216813) 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 5 ways as a sum of consecutive naturals, for example, 623148 + ... + 623165.

It is an arithmetic number, because the mean of its divisors is an integer number (2700347).

Almost surely, 2^11216817 is an apocalyptic number.

It is an amenable number.

11216817 is a deficient number, since it is larger than the sum of its proper divisors (4985265).

11216817 is a wasteful number, since it uses less digits than its factorization.

11216817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246319 (or 1246316 counting only the distinct ones).

The product of its digits is 672, while the sum is 27.

The square root of 11216817 is about 3349.1516836357. The cubic root of 11216817 is about 223.8497145102.

The spelling of 11216817 in words is "eleven million, two hundred sixteen thousand, eight hundred seventeen".