11071983 has 16 divisors (see below), whose sum is σ = 16120160. Its totient is φ = 6718464.

The previous prime is 11071979. The next prime is 11072029. The reversal of 11071983 is 38917011.

It is not a de Polignac number, because 11071983 - 2² = 11071979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11071983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11071943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903 + ... + 4791.

It is an arithmetic number, because the mean of its divisors is an integer number (1007510).

Almost surely, 2^11071983 is an apocalyptic number.

11071983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11071983 is a deficient number, since it is larger than the sum of its proper divisors (5048177).

11071983 is a wasteful number, since it uses less digits than its factorization.

11071983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 11071983 is about 3327.4589403928. The cubic root of 11071983 is about 222.8820721502.

Adding to 11071983 its reverse (38917011), we get a palindrome (49988994).

The spelling of 11071983 in words is "eleven million, seventy-one thousand, nine hundred eighty-three".