3985479 has 6 divisors (see below), whose sum is σ = 5756816. Its totient is φ = 2656980.

The previous prime is 3985469. The next prime is 3985511. The reversal of 3985479 is 9745893.

3985479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3985479 - 2⁷ = 3985351 is a prime.

It is a Duffinian number.

3985479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985409) 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 5 ways as a sum of consecutive naturals, for example, 221407 + ... + 221424.

Almost surely, 2^3985479 is an apocalyptic number.

3985479 is a deficient number, since it is larger than the sum of its proper divisors (1771337).

3985479 is a wasteful number, since it uses less digits than its factorization.

3985479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442837 (or 442834 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3985479 is about 1996.3664493274. The cubic root of 3985479 is about 158.5477835279.

The spelling of 3985479 in words is "three million, nine hundred eighty-five thousand, four hundred seventy-nine".