11778823 has 8 divisors (see below), whose sum is σ = 13483520. Its totient is φ = 10079640.

The previous prime is 11778797. The next prime is 11778847. The reversal of 11778823 is 32887711.

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 11778823 - 2¹⁷ = 11647751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11778223) 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, 5518 + ... + 7348.

It is an arithmetic number, because the mean of its divisors is an integer number (1685440).

Almost surely, 2^11778823 is an apocalyptic number.

11778823 is a deficient number, since it is larger than the sum of its proper divisors (1704697).

11778823 is an equidigital number, since it uses as much as digits as its factorization.

11778823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757.

The product of its digits is 18816, while the sum is 37.

The square root of 11778823 is about 3432.0289917190. The cubic root of 11778823 is about 227.5275368189.

It can be divided in two parts, 1177 and 8823, that added together give a 4-th power (10000 = 10⁴).

The spelling of 11778823 in words is "eleven million, seven hundred seventy-eight thousand, eight hundred twenty-three".