11745917 has 4 divisors (see below), whose sum is σ = 11830560. Its totient is φ = 11661276.

The previous prime is 11745907. The next prime is 11745947. The reversal of 11745917 is 71954711.

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: 71954711 = 3697 ⋅19463.

It is a cyclic number.

It is not a de Polignac number, because 11745917 - 2⁴ = 11745901 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 (11745907) 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, 42113 + ... + 42390.

It is an arithmetic number, because the mean of its divisors is an integer number (2957640).

Almost surely, 2^11745917 is an apocalyptic number.

It is an amenable number.

11745917 is a deficient number, since it is larger than the sum of its proper divisors (84643).

11745917 is an equidigital number, since it uses as much as digits as its factorization.

11745917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84642.

The product of its digits is 8820, while the sum is 35.

The square root of 11745917 is about 3427.2316816930. The cubic root of 11745917 is about 227.3154611861.

The spelling of 11745917 in words is "eleven million, seven hundred forty-five thousand, nine hundred seventeen".