3656630 has 16 divisors (see below), whose sum is σ = 6616944. Its totient is φ = 1454880.

The previous prime is 3656621. The next prime is 3656633. The reversal of 3656630 is 366563.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3656593 and 3656602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656633) 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, 1244 + ... + 2976.

It is an arithmetic number, because the mean of its divisors is an integer number (413559).

Almost surely, 2^3656630 is an apocalyptic number.

3656630 is a deficient number, since it is larger than the sum of its proper divisors (2960314).

3656630 is a wasteful number, since it uses less digits than its factorization.

3656630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 3656630 is about 1912.2316805241. The cubic root of 3656630 is about 154.0613406057.

The spelling of 3656630 in words is "three million, six hundred fifty-six thousand, six hundred thirty".