3638206 has 16 divisors (see below), whose sum is σ = 6411888. Its totient is φ = 1526400.

The previous prime is 3638203. The next prime is 3638207. The reversal of 3638206 is 6028363.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3638203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6075 + ... + 6646.

It is an arithmetic number, because the mean of its divisors is an integer number (400743).

Almost surely, 2^3638206 is an apocalyptic number.

3638206 is a deficient number, since it is larger than the sum of its proper divisors (2773682).

3638206 is a wasteful number, since it uses less digits than its factorization.

3638206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12747.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 3638206 is about 1907.4081891404. The cubic root of 3638206 is about 153.8021578169.

It can be divided in two parts, 3638 and 206, that added together give a square (3844 = 62²).

The spelling of 3638206 in words is "three million, six hundred thirty-eight thousand, two hundred six".