3968965 has 48 divisors (see below), whose sum is σ = 6535296. Its totient is φ = 2246400.

The previous prime is 3968957. The next prime is 3968981. The reversal of 3968965 is 5698693.

It is not a de Polignac number, because 3968965 - 2³ = 3968957 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 65035 + ... + 65095.

It is an arithmetic number, because the mean of its divisors is an integer number (136152).

Almost surely, 2^3968965 is an apocalyptic number.

3968965 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3968965 is a deficient number, since it is larger than the sum of its proper divisors (2566331).

3968965 is a wasteful number, since it uses less digits than its factorization.

3968965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 97 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 3968965 is about 1992.2261417821. The cubic root of 3968965 is about 158.3284972361.

The spelling of 3968965 in words is "three million, nine hundred sixty-eight thousand, nine hundred sixty-five".