3989735 has 4 divisors (see below), whose sum is σ = 4787688. Its totient is φ = 3191784.

The previous prime is 3989729. The next prime is 3989759. The reversal of 3989735 is 5379893.

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 3989735 - 2¹⁶ = 3924199 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

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 3 ways as a sum of consecutive naturals, for example, 398969 + ... + 398978.

It is an arithmetic number, because the mean of its divisors is an integer number (1196922).

Almost surely, 2^3989735 is an apocalyptic number.

3989735 is a deficient number, since it is larger than the sum of its proper divisors (797953).

3989735 is an equidigital number, since it uses as much as digits as its factorization.

3989735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797952.

The product of its digits is 204120, while the sum is 44.

The square root of 3989735 is about 1997.4321014743. The cubic root of 3989735 is about 158.6041999432.

The spelling of 3989735 in words is "three million, nine hundred eighty-nine thousand, seven hundred thirty-five".