11782812 has 24 divisors (see below), whose sum is σ = 28940800. Its totient is φ = 3720816.

The previous prime is 11782807. The next prime is 11782829. The reversal of 11782812 is 21828711.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11782812.

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, 25612 + ... + 26067.

Almost surely, 2^11782812 is an apocalyptic number.

11782812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11782812 is an abundant number, since it is smaller than the sum of its proper divisors (17157988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11782812 is a wasteful number, since it uses less digits than its factorization.

11782812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51705 (or 51703 counting only the distinct ones).

The product of its digits is 1792, while the sum is 30.

The square root of 11782812 is about 3432.6100856345. The cubic root of 11782812 is about 227.5532186409.

The spelling of 11782812 in words is "eleven million, seven hundred eighty-two thousand, eight hundred twelve".