3647225 has 12 divisors (see below), whose sum is σ = 4719936. Its totient is φ = 2790480.

The previous prime is 3647207. The next prime is 3647233. The reversal of 3647225 is 5227463.

It is not a de Polignac number, because 3647225 - 2¹⁴ = 3630841 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 6⁸ + 4⁶ + 7 + 2 + 2¹³ + 5⁹ .

It is a Duffinian number.

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, 2597 + ... + 3746.

It is an arithmetic number, because the mean of its divisors is an integer number (393328).

Almost surely, 2^3647225 is an apocalyptic number.

It is an amenable number.

3647225 is a deficient number, since it is larger than the sum of its proper divisors (1072711).

3647225 is a wasteful number, since it uses less digits than its factorization.

3647225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376 (or 6371 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 3647225 is about 1909.7709286718. The cubic root of 3647225 is about 153.9291432057.

The spelling of 3647225 in words is "three million, six hundred forty-seven thousand, two hundred twenty-five".