11716623 has 16 divisors (see below), whose sum is σ = 17416800. Its totient is φ = 7784640.

The previous prime is 11716613. The next prime is 11716669. The reversal of 11716623 is 32661711.

It is not a de Polignac number, because 11716623 - 2¹⁸ = 11454479 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11716613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10513 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (1088550).

Almost surely, 2^11716623 is an apocalyptic number.

11716623 is a deficient number, since it is larger than the sum of its proper divisors (5700177).

11716623 is a wasteful number, since it uses less digits than its factorization.

11716623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479 (or 1473 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 11716623 is about 3422.9553020745. The cubic root of 11716623 is about 227.1263309952.

The spelling of 11716623 in words is "eleven million, seven hundred sixteen thousand, six hundred twenty-three".