11782399 has 2 divisors, whose sum is σ = 11782400. Its totient is φ = 11782398.

The previous prime is 11782369. The next prime is 11782427. The reversal of 11782399 is 99328711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11782399 - 2⁵ = 11782367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11782319) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891199 + 5891200.

It is an arithmetic number, because the mean of its divisors is an integer number (5891200).

Almost surely, 2^11782399 is an apocalyptic number.

11782399 is a deficient number, since it is larger than the sum of its proper divisors (1).

11782399 is an equidigital number, since it uses as much as digits as its factorization.

11782399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 40.

The square root of 11782399 is about 3432.5499268037. The cubic root of 11782399 is about 227.5505599497.

The spelling of 11782399 in words is "eleven million, seven hundred eighty-two thousand, three hundred ninety-nine".