7271668 has 12 divisors (see below), whose sum is σ = 12744900. Its totient is φ = 3630272.

The previous prime is 7271651. The next prime is 7271669. The reversal of 7271668 is 8661727.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5116644 + 2155024 = 2262^2 + 1468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7271669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3330 + ... + 5062.

It is an arithmetic number, because the mean of its divisors is an integer number (1062075).

Almost surely, 2^7271668 is an apocalyptic number.

It is an amenable number.

7271668 is a deficient number, since it is larger than the sum of its proper divisors (5473232).

7271668 is a wasteful number, since it uses less digits than its factorization.

7271668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786 (or 2784 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 7271668 is about 2696.6030482813. The cubic root of 7271668 is about 193.7364544120.

The spelling of 7271668 in words is "seven million, two hundred seventy-one thousand, six hundred sixty-eight".