7227644 has 12 divisors (see below), whose sum is σ = 12957168. Its totient is φ = 3525600.

The previous prime is 7227551. The next prime is 7227667. The reversal of 7227644 is 4467227.

7227644 = 947² + 948² + ... + 954².

It is a self number, because there is not a number n which added to its sum of digits gives 7227644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21872 + ... + 22199.

It is an arithmetic number, because the mean of its divisors is an integer number (1079764).

Almost surely, 2^7227644 is an apocalyptic number.

It is an amenable number.

7227644 is a deficient number, since it is larger than the sum of its proper divisors (5729524).

7227644 is a wasteful number, since it uses less digits than its factorization.

7227644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44116 (or 44114 counting only the distinct ones).

The product of its digits is 18816, while the sum is 32.

The square root of 7227644 is about 2688.4277933394. The cubic root of 7227644 is about 193.3446908376.

The spelling of 7227644 in words is "seven million, two hundred twenty-seven thousand, six hundred forty-four".