3868636 has 12 divisors (see below), whose sum is σ = 6816600. Its totient is φ = 1921040.

The previous prime is 3868619. The next prime is 3868649. The reversal of 3868636 is 6368683.

It is a d-powerful number, because it can be written as 3² + 8⁵ + 6 + 8⁷ + 6² + 3¹⁰ + 6⁸ .

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 3 ways as a sum of consecutive naturals, for example, 2650 + ... + 3841.

It is an arithmetic number, because the mean of its divisors is an integer number (568050).

Almost surely, 2^3868636 is an apocalyptic number.

It is an amenable number.

3868636 is a deficient number, since it is larger than the sum of its proper divisors (2947964).

3868636 is a wasteful number, since it uses less digits than its factorization.

3868636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644 (or 6642 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 3868636 is about 1966.8848466547. The cubic root of 3868636 is about 156.9829994980.

The spelling of 3868636 in words is "three million, eight hundred sixty-eight thousand, six hundred thirty-six".