3605638 has 8 divisors (see below), whose sum is σ = 5418360. Its totient is φ = 1799520.

The previous prime is 3605633. The next prime is 3605647. The reversal of 3605638 is 8365063.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3605633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78 + ... + 2686.

It is an arithmetic number, because the mean of its divisors is an integer number (677295).

Almost surely, 2^3605638 is an apocalyptic number.

3605638 is a deficient number, since it is larger than the sum of its proper divisors (1812722).

3605638 is a wasteful number, since it uses less digits than its factorization.

3605638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3605638 is about 1898.8517583003. The cubic root of 3605638 is about 153.3418531288.

The spelling of 3605638 in words is "three million, six hundred five thousand, six hundred thirty-eight".