11717445 has 8 divisors (see below), whose sum is σ = 18747936. Its totient is φ = 6249296.

The previous prime is 11717443. The next prime is 11717483. The reversal of 11717445 is 54471711.

11717445 is digitally balanced in base 2, base 3 and base 4, because in such bases 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 a cyclic number.

It is not a de Polignac number, because 11717445 - 2¹ = 11717443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11717443) 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, 390567 + ... + 390596.

It is an arithmetic number, because the mean of its divisors is an integer number (2343492).

Almost surely, 2^11717445 is an apocalyptic number.

11717445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11717445 is a deficient number, since it is larger than the sum of its proper divisors (7030491).

11717445 is an equidigital number, since it uses as much as digits as its factorization.

11717445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781171.

The product of its digits is 3920, while the sum is 30.

The square root of 11717445 is about 3423.0753716505. The cubic root of 11717445 is about 227.1316423515.

The spelling of 11717445 in words is "eleven million, seven hundred seventeen thousand, four hundred forty-five".