3859 has 4 divisors (see below), whose sum is σ = 4104.
Its totient is φ = 3616.
The previous prime is 3853. The next prime is 3863. The reversal of 3859 is 9583.
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 3859 - 23 = 3851 is a prime.
It is a Duffinian number.
It is a plaindrome in base 11, base 13, base 14 and base 15.
It is not an unprimeable number, because it can be changed into a prime (3851) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97 + ... + 130.
It is an arithmetic number, because the mean of its divisors is an integer number (1026).
23859 is an apocalyptic number.
3859 is a deficient number, since it is larger than the sum of its proper divisors (245).
3859 is a wasteful number, since it uses less digits than its factorization.
3859 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 244.
The product of its digits is 1080, while the sum is 25.
The square root of 3859 is about 62.1208499620.
The cubic root of 3859 is about 15.6852553362.
The spelling of 3859 in words is "three thousand, eight hundred fifty-nine".