3853985 has 8 divisors (see below), whose sum is σ = 4896936. Its totient is φ = 2901760.

The previous prime is 3853943. The next prime is 3853991. The reversal of 3853985 is 5893583.

It can be written as a sum of positive squares in 4 ways, for example, as 43681 + 3810304 = 209^2 + 1952^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3853985 - 2¹² = 3849889 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22586 + ... + 22755.

It is an arithmetic number, because the mean of its divisors is an integer number (612117).

Almost surely, 2^3853985 is an apocalyptic number.

It is an amenable number.

3853985 is a deficient number, since it is larger than the sum of its proper divisors (1042951).

3853985 is a wasteful number, since it uses less digits than its factorization.

3853985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45363.

The product of its digits is 129600, while the sum is 41.

The square root of 3853985 is about 1963.1568964298. The cubic root of 3853985 is about 156.7845774997.

The spelling of 3853985 in words is "three million, eight hundred fifty-three thousand, nine hundred eighty-five".