3999935 has 8 divisors (see below), whose sum is σ = 4902336. Its totient is φ = 3131680.

The previous prime is 3999929. The next prime is 3999949. The reversal of 3999935 is 5399993.

It is a happy number.

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

It is not a de Polignac number, because 3999935 - 2⁶ = 3999871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3999935.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8276 + ... + 8745.

It is an arithmetic number, because the mean of its divisors is an integer number (612792).

Almost surely, 2^3999935 is an apocalyptic number.

3999935 is a deficient number, since it is larger than the sum of its proper divisors (902401).

3999935 is a wasteful number, since it uses less digits than its factorization.

3999935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17073.

The product of its digits is 295245, while the sum is 47.

The square root of 3999935 is about 1999.9837499340. The cubic root of 3999935 is about 158.7392453499.

The spelling of 3999935 in words is "three million, nine hundred ninety-nine thousand, nine hundred thirty-five".