3659638 has 8 divisors (see below), whose sum is σ = 5522832. Its totient is φ = 1818696.

The previous prime is 3659629. The next prime is 3659651. The reversal of 3659638 is 8369563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3659638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5145 + ... + 5812.

It is an arithmetic number, because the mean of its divisors is an integer number (690354).

Almost surely, 2^3659638 is an apocalyptic number.

3659638 is a deficient number, since it is larger than the sum of its proper divisors (1863194).

3659638 is a wasteful number, since it uses less digits than its factorization.

3659638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11126.

The product of its digits is 116640, while the sum is 40.

The square root of 3659638 is about 1913.0180344158. The cubic root of 3659638 is about 154.1035734357.

The spelling of 3659638 in words is "three million, six hundred fifty-nine thousand, six hundred thirty-eight".