3859705 has 4 divisors (see below), whose sum is σ = 4631652. Its totient is φ = 3087760.

The previous prime is 3859693. The next prime is 3859759. The reversal of 3859705 is 5079583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5079583 = 17 ⋅298799.

It can be written as a sum of positive squares in 2 ways, for example, as 2483776 + 1375929 = 1576^2 + 1173^2 .

It is not a de Polignac number, because 3859705 - 2⁵ = 3859673 is a prime.

It is a Duffinian number.

3859705 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385966 + ... + 385975.

It is an arithmetic number, because the mean of its divisors is an integer number (1157913).

Almost surely, 2^3859705 is an apocalyptic number.

It is an amenable number.

3859705 is a deficient number, since it is larger than the sum of its proper divisors (771947).

3859705 is an equidigital number, since it uses as much as digits as its factorization.

3859705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771946.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 3859705 is about 1964.6131934811. The cubic root of 3859705 is about 156.8621045680.

The spelling of 3859705 in words is "three million, eight hundred fifty-nine thousand, seven hundred five".