7326728 has 24 divisors (see below), whose sum is σ = 14597850. Its totient is φ = 3446784.

The previous prime is 7326721. The next prime is 7326731. The reversal of 7326728 is 8276237.

It can be written as a sum of positive squares in 3 ways, for example, as 7279204 + 47524 = 2698^2 + 218^2 .

It is not an unprimeable number, because it can be changed into a prime (7326721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728 + ... + 3896.

Almost surely, 2^7326728 is an apocalyptic number.

It is an amenable number.

7326728 is a deficient number, since it is larger than the sum of its proper divisors (7271122).

7326728 is a wasteful number, since it uses less digits than its factorization.

7326728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209 (or 3188 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 7326728 is about 2706.7929362993. The cubic root of 7326728 is about 194.2242067203.

The spelling of 7326728 in words is "seven million, three hundred twenty-six thousand, seven hundred twenty-eight".