11887983 has 6 divisors (see below), whose sum is σ = 17171544. Its totient is φ = 7925316.

The previous prime is 11887979. The next prime is 11888017. The reversal of 11887983 is 38978811.

It is not a de Polignac number, because 11887983 - 2² = 11887979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11887933) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 660435 + ... + 660452.

It is an arithmetic number, because the mean of its divisors is an integer number (2861924).

Almost surely, 2^11887983 is an apocalyptic number.

11887983 is a deficient number, since it is larger than the sum of its proper divisors (5283561).

11887983 is a wasteful number, since it uses less digits than its factorization.

11887983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320893 (or 1320890 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 11887983 is about 3447.8954450505. The cubic root of 11887983 is about 228.2282455782.

The spelling of 11887983 in words is "eleven million, eight hundred eighty-seven thousand, nine hundred eighty-three".