3985699 has 4 divisors (see below), whose sum is σ = 3997864. Its totient is φ = 3973536.

The previous prime is 3985697. The next prime is 3985711. The reversal of 3985699 is 9965893.

3985699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3985699 - 2¹ = 3985697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3985697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5577 + ... + 6250.

It is an arithmetic number, because the mean of its divisors is an integer number (999466).

Almost surely, 2^3985699 is an apocalyptic number.

3985699 is a deficient number, since it is larger than the sum of its proper divisors (12165).

3985699 is a wasteful number, since it uses less digits than its factorization.

3985699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12164.

The product of its digits is 524880, while the sum is 49.

The square root of 3985699 is about 1996.4215486715. The cubic root of 3985699 is about 158.5507007741.

The spelling of 3985699 in words is "three million, nine hundred eighty-five thousand, six hundred ninety-nine".