7271648 has 24 divisors (see below), whose sum is σ = 15159312. Its totient is φ = 3421696.

The previous prime is 7271629. The next prime is 7271651. The reversal of 7271648 is 8461727.

It is a happy number.

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, 6140 + ... + 7227.

It is an arithmetic number, because the mean of its divisors is an integer number (631638).

Almost surely, 2^7271648 is an apocalyptic number.

It is an amenable number.

7271648 is an abundant number, since it is smaller than the sum of its proper divisors (7887664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7271648 is a wasteful number, since it uses less digits than its factorization.

7271648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13394 (or 13386 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 7271648 is about 2696.5993399094. The cubic root of 7271648 is about 193.7362767942.

The spelling of 7271648 in words is "seven million, two hundred seventy-one thousand, six hundred forty-eight".