3869636 has 12 divisors (see below), whose sum is σ = 6900012. Its totient is φ = 1898208.

The previous prime is 3869629. The next prime is 3869639. The reversal of 3869636 is 6369683.

3869636 = T₇₅ + T₇₆ + ... + T₂₈₆.

3869636 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 2 ways, for example, as 1000000 + 2869636 = 1000^2 + 1694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3869593 and 3869602.

It is not an unprimeable number, because it can be changed into a prime (3869639) 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, 8915 + ... + 9338.

It is an arithmetic number, because the mean of its divisors is an integer number (575001).

Almost surely, 2^3869636 is an apocalyptic number.

It is an amenable number.

3869636 is a deficient number, since it is larger than the sum of its proper divisors (3030376).

3869636 is a wasteful number, since it uses less digits than its factorization.

3869636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18310 (or 18308 counting only the distinct ones).

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

The square root of 3869636 is about 1967.1390393157. The cubic root of 3869636 is about 156.9965244609.

The spelling of 3869636 in words is "three million, eight hundred sixty-nine thousand, six hundred thirty-six".