11855983 has 8 divisors (see below), whose sum is σ = 12325680. Its totient is φ = 11390400.

The previous prime is 11855959. The next prime is 11855989. The reversal of 11855983 is 38955811.

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

It is a cyclic number.

It is not a de Polignac number, because 11855983 - 2¹³ = 11847791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11855989) 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, 5683 + ... + 7483.

It is an arithmetic number, because the mean of its divisors is an integer number (1540710).

Almost surely, 2^11855983 is an apocalyptic number.

11855983 is a deficient number, since it is larger than the sum of its proper divisors (469697).

11855983 is a wasteful number, since it uses less digits than its factorization.

11855983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057.

The product of its digits is 43200, while the sum is 40.

The square root of 11855983 is about 3443.2518060694. The cubic root of 11855983 is about 228.0232804278.

The spelling of 11855983 in words is "eleven million, eight hundred fifty-five thousand, nine hundred eighty-three".