3647228 has 12 divisors (see below), whose sum is σ = 6873720. Its totient is φ = 1683312.

The previous prime is 3647207. The next prime is 3647233. The reversal of 3647228 is 8227463.

3647228 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3647194 and 3647203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35018 + ... + 35121.

It is an arithmetic number, because the mean of its divisors is an integer number (572810).

Almost surely, 2^3647228 is an apocalyptic number.

It is an amenable number.

3647228 is a deficient number, since it is larger than the sum of its proper divisors (3226492).

3647228 is a wasteful number, since it uses less digits than its factorization.

3647228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70156 (or 70154 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 3647228 is about 1909.7717141062. The cubic root of 3647228 is about 153.9291854101.

The spelling of 3647228 in words is "three million, six hundred forty-seven thousand, two hundred twenty-eight".