11782745 has 8 divisors (see below), whose sum is σ = 15227016. Its totient is φ = 8701056.

The previous prime is 11782741. The next prime is 11782747. The reversal of 11782745 is 54728711.

It can be written as a sum of positive squares in 4 ways, for example, as 38416 + 11744329 = 196^2 + 3427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11782745 - 2² = 11782741 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11782741) by changing a digit.

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, 90572 + ... + 90701.

It is an arithmetic number, because the mean of its divisors is an integer number (1903377).

Almost surely, 2^11782745 is an apocalyptic number.

It is an amenable number.

11782745 is a deficient number, since it is larger than the sum of its proper divisors (3444271).

11782745 is a wasteful number, since it uses less digits than its factorization.

11782745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181291.

The product of its digits is 15680, while the sum is 35.

The square root of 11782745 is about 3432.6003262833. The cubic root of 11782745 is about 227.5527873321.

The spelling of 11782745 in words is "eleven million, seven hundred eighty-two thousand, seven hundred forty-five".