11789623 has 2 divisors, whose sum is σ = 11789624. Its totient is φ = 11789622.

The previous prime is 11789587. The next prime is 11789647. The reversal of 11789623 is 32698711.

It is a strong prime.

It is an emirp because it is prime and its reverse (32698711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11789623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11789663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5894811 + 5894812.

It is an arithmetic number, because the mean of its divisors is an integer number (5894812).

Almost surely, 2^11789623 is an apocalyptic number.

11789623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11789623 is an equidigital number, since it uses as much as digits as its factorization.

11789623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 11789623 is about 3433.6020445008. The cubic root of 11789623 is about 227.5970555574.

It can be divided in two parts, 1178 and 9623, that added together give a palindrome (10801).

The spelling of 11789623 in words is "eleven million, seven hundred eighty-nine thousand, six hundred twenty-three".