11990783 has 4 divisors (see below), whose sum is σ = 13703760. Its totient is φ = 10277808.

The previous prime is 11990779. The next prime is 11990791. The reversal of 11990783 is 38709911.

11990783 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38709911 = 271 ⋅142841.

It is a cyclic number.

It is not a de Polignac number, because 11990783 - 2² = 11990779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856478 + ... + 856491.

It is an arithmetic number, because the mean of its divisors is an integer number (3425940).

Almost surely, 2^11990783 is an apocalyptic number.

11990783 is a deficient number, since it is larger than the sum of its proper divisors (1712977).

11990783 is an equidigital number, since it uses as much as digits as its factorization.

11990783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712976.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 11990783 is about 3462.7710002251. The cubic root of 11990783 is about 228.8842177683.

The spelling of 11990783 in words is "eleven million, nine hundred ninety thousand, seven hundred eighty-three".