3968636 has 24 divisors (see below), whose sum is σ = 8133216. Its totient is φ = 1658880.

The previous prime is 3968617. The next prime is 3968647. The reversal of 3968636 is 6368693.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 3968593 and 3968602.

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 7 ways as a sum of consecutive naturals, for example, 581 + ... + 2876.

It is an arithmetic number, because the mean of its divisors is an integer number (338884).

Almost surely, 2^3968636 is an apocalyptic number.

It is an amenable number.

3968636 is an abundant number, since it is smaller than the sum of its proper divisors (4164580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3968636 is a wasteful number, since it uses less digits than its factorization.

3968636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509 (or 3507 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 3968636 is about 1992.1435691235. The cubic root of 3968636 is about 158.3241223327.

The spelling of 3968636 in words is "three million, nine hundred sixty-eight thousand, six hundred thirty-six".