3996489 has 24 divisors (see below), whose sum is σ = 6405888. Its totient is φ = 2207520.

The previous prime is 3996467. The next prime is 3996511. The reversal of 3996489 is 9846993.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3996467) and next prime (3996511).

It is not a de Polignac number, because 3996489 - 2⁷ = 3996361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3996439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4119 + ... + 4995.

It is an arithmetic number, because the mean of its divisors is an integer number (266912).

Almost surely, 2^3996489 is an apocalyptic number.

It is an amenable number.

3996489 is a deficient number, since it is larger than the sum of its proper divisors (2409399).

3996489 is a wasteful number, since it uses less digits than its factorization.

3996489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 918 counting only the distinct ones).

The product of its digits is 419904, while the sum is 48.

The square root of 3996489 is about 1999.1220573042. The cubic root of 3996489 is about 158.6936468921.

The spelling of 3996489 in words is "three million, nine hundred ninety-six thousand, four hundred eighty-nine".