3688225 has 12 divisors (see below), whose sum is σ = 4721920. Its totient is φ = 2854800.

The previous prime is 3688219. The next prime is 3688241. The reversal of 3688225 is 5228863.

It is not a de Polignac number, because 3688225 - 2⁵ = 3688193 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1605 + ... + 3154.

Almost surely, 2^3688225 is an apocalyptic number.

It is an amenable number.

3688225 is a deficient number, since it is larger than the sum of its proper divisors (1033695).

3688225 is a wasteful number, since it uses less digits than its factorization.

3688225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800 (or 4795 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 3688225 is about 1920.4752016103. The cubic root of 3688225 is about 154.5037894917.

The spelling of 3688225 in words is "three million, six hundred eighty-eight thousand, two hundred twenty-five".