3899636 has 24 divisors (see below), whose sum is σ = 7738080. Its totient is φ = 1704672.

The previous prime is 3899611. The next prime is 3899639. The reversal of 3899636 is 6369983.

3899636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3899639) 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 7 ways as a sum of consecutive naturals, for example, 986 + ... + 2961.

It is an arithmetic number, because the mean of its divisors is an integer number (322420).

Almost surely, 2^3899636 is an apocalyptic number.

It is an amenable number.

3899636 is a deficient number, since it is larger than the sum of its proper divisors (3838444).

3899636 is a wasteful number, since it uses less digits than its factorization.

3899636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983 (or 3981 counting only the distinct ones).

The product of its digits is 209952, while the sum is 44.

The square root of 3899636 is about 1974.7496043803. The cubic root of 3899636 is about 157.4011944324.

The spelling of 3899636 in words is "three million, eight hundred ninety-nine thousand, six hundred thirty-six".