3960081 has 6 divisors (see below), whose sum is σ = 5720130. Its totient is φ = 2640048.

The previous prime is 3960053. The next prime is 3960083. The reversal of 3960081 is 1800693.

3960081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3294225 + 665856 = 1815^2 + 816^2 .

It is not a de Polignac number, because 3960081 - 2⁵ = 3960049 is a prime.

It is a super-2 number, since 2×3960081² = 31364483053122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3960083) 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, 219996 + ... + 220013.

It is an arithmetic number, because the mean of its divisors is an integer number (953355).

Almost surely, 2^3960081 is an apocalyptic number.

It is an amenable number.

3960081 is a deficient number, since it is larger than the sum of its proper divisors (1760049).

3960081 is a wasteful number, since it uses less digits than its factorization.

3960081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440015 (or 440012 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 3960081 is about 1989.9952261249. The cubic root of 3960081 is about 158.2102765610.

The spelling of 3960081 in words is "three million, nine hundred sixty thousand, eighty-one".