11782885 has 8 divisors (see below), whose sum is σ = 14186520. Its totient is φ = 9394944.

The previous prime is 11782861. The next prime is 11782913. The reversal of 11782885 is 58828711.

It can be written as a sum of positive squares in 4 ways, for example, as 161604 + 11621281 = 402^2 + 3409^2 .

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 11782885 - 2¹⁵ = 11750117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (1773315).

Almost surely, 2^11782885 is an apocalyptic number.

It is an amenable number.

11782885 is a deficient number, since it is larger than the sum of its proper divisors (2403635).

11782885 is an equidigital number, since it uses as much as digits as its factorization.

11782885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847.

The product of its digits is 35840, while the sum is 40.

The square root of 11782885 is about 3432.6207189260. The cubic root of 11782885 is about 227.5536885726.

The spelling of 11782885 in words is "eleven million, seven hundred eighty-two thousand, eight hundred eighty-five".