11906217 has 16 divisors (see below), whose sum is σ = 18568000. Its totient is φ = 7519392.

The previous prime is 11906177. The next prime is 11906231. The reversal of 11906217 is 71260911.

It is not a de Polignac number, because 11906217 - 2¹⁰ = 11905193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11906287) 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, 11092 + ... + 12117.

It is an arithmetic number, because the mean of its divisors is an integer number (1160500).

Almost surely, 2^11906217 is an apocalyptic number.

It is an amenable number.

11906217 is a deficient number, since it is larger than the sum of its proper divisors (6661783).

11906217 is a wasteful number, since it uses less digits than its factorization.

11906217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23237 (or 23231 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 11906217 is about 3450.5386536018. The cubic root of 11906217 is about 228.3448728192.

The spelling of 11906217 in words is "eleven million, nine hundred six thousand, two hundred seventeen".