3688630 has 16 divisors (see below), whose sum is σ = 7243344. Its totient is φ = 1341280.

The previous prime is 3688627. The next prime is 3688631. The reversal of 3688630 is 368863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688631) 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, 16657 + ... + 16876.

It is an arithmetic number, because the mean of its divisors is an integer number (452709).

Almost surely, 2^3688630 is an apocalyptic number.

3688630 is a deficient number, since it is larger than the sum of its proper divisors (3554714).

3688630 is a wasteful number, since it uses less digits than its factorization.

3688630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33551.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 3688630 is about 1920.5806413686. The cubic root of 3688630 is about 154.5094445828.

It can be divided in two parts, 368 and 8630, that added together give a palindrome (8998).

The spelling of 3688630 in words is "three million, six hundred eighty-eight thousand, six hundred thirty".