11782423 has 4 divisors (see below), whose sum is σ = 11793240. Its totient is φ = 11771608.

The previous prime is 11782399. The next prime is 11782427. The reversal of 11782423 is 32428711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32428711 = 7 ⋅4632673.

It is a cyclic number.

It is not a de Polignac number, because 11782423 - 2²¹ = 9685271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11782391 and 11782400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11782427) 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 3 ways as a sum of consecutive naturals, for example, 3565 + ... + 6022.

It is an arithmetic number, because the mean of its divisors is an integer number (2948310).

Almost surely, 2^11782423 is an apocalyptic number.

11782423 is a deficient number, since it is larger than the sum of its proper divisors (10817).

11782423 is an equidigital number, since it uses as much as digits as its factorization.

11782423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10816.

The product of its digits is 2688, while the sum is 28.

The square root of 11782423 is about 3432.5534227452. The cubic root of 11782423 is about 227.5507144516.

The spelling of 11782423 in words is "eleven million, seven hundred eighty-two thousand, four hundred twenty-three".