11605983 has 8 divisors (see below), whose sum is σ = 15501696. Its totient is φ = 7723800.

The previous prime is 11605981. The next prime is 11605987. The reversal of 11605983 is 38950611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11605983 - 2¹ = 11605981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11605981) 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, 1173 + ... + 4958.

It is an arithmetic number, because the mean of its divisors is an integer number (1937712).

Almost surely, 2^11605983 is an apocalyptic number.

11605983 is a deficient number, since it is larger than the sum of its proper divisors (3895713).

11605983 is an equidigital number, since it uses as much as digits as its factorization.

11605983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 11605983 is about 3406.7554946019. The cubic root of 11605983 is about 226.4091512718.

The spelling of 11605983 in words is "eleven million, six hundred five thousand, nine hundred eighty-three".