387983 has 4 divisors (see below), whose sum is σ = 397488. Its totient is φ = 378480.

The previous prime is 387977. The next prime is 388009. The reversal of 387983 is 389783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 387983 - 2⁴ = 387967 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 (387913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4691 + ... + 4772.

It is an arithmetic number, because the mean of its divisors is an integer number (99372).

2³⁸⁷⁹⁸³ is an apocalyptic number.

387983 is a deficient number, since it is larger than the sum of its proper divisors (9505).

387983 is an equidigital number, since it uses as much as digits as its factorization.

387983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9504.

The product of its digits is 36288, while the sum is 38.

The square root of 387983 is about 622.8828140188. The cubic root of 387983 is about 72.9352650608.

The spelling of 387983 in words is "three hundred eighty-seven thousand, nine hundred eighty-three".