3851859 has 16 divisors (see below), whose sum is σ = 5647104. Its totient is φ = 2316000.

The previous prime is 3851857. The next prime is 3851863. The reversal of 3851859 is 9581583.

It is not a de Polignac number, because 3851859 - 2¹ = 3851857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3851857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4597 + ... + 5369.

It is an arithmetic number, because the mean of its divisors is an integer number (352944).

Almost surely, 2^3851859 is an apocalyptic number.

3851859 is a deficient number, since it is larger than the sum of its proper divisors (1795245).

3851859 is a wasteful number, since it uses less digits than its factorization.

3851859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938.

The product of its digits is 43200, while the sum is 39.

The square root of 3851859 is about 1962.6153469287. The cubic root of 3851859 is about 156.7557428154.

The spelling of 3851859 in words is "three million, eight hundred fifty-one thousand, eight hundred fifty-nine".