11906917 has 4 divisors (see below), whose sum is σ = 12989376. Its totient is φ = 10824460.

The previous prime is 11906911. The next prime is 11906929. The reversal of 11906917 is 71960911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71960911 = 11 ⋅6541901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11906917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11906911) 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, 541213 + ... + 541234.

It is an arithmetic number, because the mean of its divisors is an integer number (3247344).

Almost surely, 2^11906917 is an apocalyptic number.

It is an amenable number.

11906917 is a deficient number, since it is larger than the sum of its proper divisors (1082459).

11906917 is a wasteful number, since it uses less digits than its factorization.

11906917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082458.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 11906917 is about 3450.6400855493. The cubic root of 11906917 is about 228.3493477440.

The spelling of 11906917 in words is "eleven million, nine hundred six thousand, nine hundred seventeen".