6381983 has 4 divisors (see below), whose sum is σ = 6444048. Its totient is φ = 6319920.

The previous prime is 6381979. The next prime is 6382007. The reversal of 6381983 is 3891836.

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 6381983 - 2² = 6381979 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 (6381913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30878 + ... + 31083.

It is an arithmetic number, because the mean of its divisors is an integer number (1611012).

Almost surely, 2^6381983 is an apocalyptic number.

6381983 is a deficient number, since it is larger than the sum of its proper divisors (62065).

6381983 is a wasteful number, since it uses less digits than its factorization.

6381983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62064.

The product of its digits is 31104, while the sum is 38.

The square root of 6381983 is about 2526.2586961750. The cubic root of 6381983 is about 185.4891656282.

The spelling of 6381983 in words is "six million, three hundred eighty-one thousand, nine hundred eighty-three".