11656217 has 8 divisors (see below), whose sum is σ = 12238080. Its totient is φ = 11087280.

The previous prime is 11656181. The next prime is 11656261. The reversal of 11656217 is 71265611.

11656217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11656217 - 2⁸ = 11655961 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 11656217.

It is not an unprimeable number, because it can be changed into a prime (11656277) 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, 1358 + ... + 5015.

It is an arithmetic number, because the mean of its divisors is an integer number (1529760).

Almost surely, 2^11656217 is an apocalyptic number.

It is an amenable number.

11656217 is a deficient number, since it is larger than the sum of its proper divisors (581863).

11656217 is an equidigital number, since it uses as much as digits as its factorization.

11656217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463.

The product of its digits is 2520, while the sum is 29.

The square root of 11656217 is about 3414.1202380701. The cubic root of 11656217 is about 226.7353355479.

The spelling of 11656217 in words is "eleven million, six hundred fifty-six thousand, two hundred seventeen".