11716603 has 4 divisors (see below), whose sum is σ = 11788648. Its totient is φ = 11644560.

The previous prime is 11716571. The next prime is 11716613. The reversal of 11716603 is 30661711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30661711 = 61 ⋅502651.

It is a cyclic number.

It is not a de Polignac number, because 11716603 - 2⁵ = 11716571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11716613) 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, 35778 + ... + 36103.

It is an arithmetic number, because the mean of its divisors is an integer number (2947162).

Almost surely, 2^11716603 is an apocalyptic number.

11716603 is a deficient number, since it is larger than the sum of its proper divisors (72045).

11716603 is an equidigital number, since it uses as much as digits as its factorization.

11716603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72044.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 11716603 is about 3422.9523806212. The cubic root of 11716603 is about 227.1262017620.

The spelling of 11716603 in words is "eleven million, seven hundred sixteen thousand, six hundred three".