11789638 has 16 divisors (see below), whose sum is σ = 20593440. Its totient is φ = 4957056.

The previous prime is 11789623. The next prime is 11789647. The reversal of 11789638 is 83698711.

It is a junction number, because it is equal to n+sod(n) for n = 11789594 and 11789603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7203 + ... + 8686.

It is an arithmetic number, because the mean of its divisors is an integer number (1287090).

Almost surely, 2^11789638 is an apocalyptic number.

11789638 is a deficient number, since it is larger than the sum of its proper divisors (8803802).

11789638 is a wasteful number, since it uses less digits than its factorization.

11789638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15951.

The product of its digits is 72576, while the sum is 43.

The square root of 11789638 is about 3433.6042287952. The cubic root of 11789638 is about 227.5971520817.

It can be divided in two parts, 1178 and 9638, that added together give a square (10816 = 104²).

The spelling of 11789638 in words is "eleven million, seven hundred eighty-nine thousand, six hundred thirty-eight".