3639976 has 16 divisors (see below), whose sum is σ = 6927840. Its totient is φ = 1792560.

The previous prime is 3639973. The next prime is 3639983. The reversal of 3639976 is 6799363.

It is a happy number.

3639976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3639971) 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 3 ways as a sum of consecutive naturals, for example, 2860 + ... + 3931.

It is an arithmetic number, because the mean of its divisors is an integer number (432990).

Almost surely, 2^3639976 is an apocalyptic number.

It is an amenable number.

3639976 is a deficient number, since it is larger than the sum of its proper divisors (3287864).

3639976 is a wasteful number, since it uses less digits than its factorization.

3639976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864 (or 6860 counting only the distinct ones).

The product of its digits is 183708, while the sum is 43.

The square root of 3639976 is about 1907.8721131145. The cubic root of 3639976 is about 153.8270955366.

The spelling of 3639976 in words is "three million, six hundred thirty-nine thousand, nine hundred seventy-six".