11789945 has 8 divisors (see below), whose sum is σ = 14191944. Its totient is φ = 9402624.

The previous prime is 11789941. The next prime is 11789963. The reversal of 11789945 is 54998711.

It can be written as a sum of positive squares in 4 ways, for example, as 141376 + 11648569 = 376^2 + 3413^2 .

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 11789945 - 2² = 11789941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11789896 and 11789905.

It is not an unprimeable number, because it can be changed into a prime (11789941) 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, 1814 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (1773993).

Almost surely, 2^11789945 is an apocalyptic number.

It is an amenable number.

11789945 is a deficient number, since it is larger than the sum of its proper divisors (2401999).

11789945 is an equidigital number, since it uses as much as digits as its factorization.

11789945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339.

The product of its digits is 90720, while the sum is 44.

The square root of 11789945 is about 3433.6489337147. The cubic root of 11789945 is about 227.5991275939.

The spelling of 11789945 in words is "eleven million, seven hundred eighty-nine thousand, nine hundred forty-five".