3985599 has 12 divisors (see below), whose sum is σ = 5646344. Its totient is φ = 2500224.

The previous prime is 3985591. The next prime is 3985609. The reversal of 3985599 is 9955893.

It is not a de Polignac number, because 3985599 - 2³ = 3985591 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 (3985591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1432 + ... + 3165.

Almost surely, 2^3985599 is an apocalyptic number.

3985599 is a deficient number, since it is larger than the sum of its proper divisors (1660745).

3985599 is a wasteful number, since it uses less digits than its factorization.

3985599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634 (or 4617 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The square root of 3985599 is about 1996.3965037036. The cubic root of 3985599 is about 158.5493747664.

The spelling of 3985599 in words is "three million, nine hundred eighty-five thousand, five hundred ninety-nine".