7023728 has 10 divisors (see below), whose sum is σ = 13608504. Its totient is φ = 3511856.

The previous prime is 7023721. The next prime is 7023739. The reversal of 7023728 is 8273207.

It is a self number, because there is not a number n which added to its sum of digits gives 7023728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7023721) 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 as a sum of consecutive naturals, namely, 219476 + ... + 219507.

Almost surely, 2^7023728 is an apocalyptic number.

It is an amenable number.

7023728 is a deficient number, since it is larger than the sum of its proper divisors (6584776).

7023728 is a wasteful number, since it uses less digits than its factorization.

7023728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438991 (or 438985 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 7023728 is about 2650.2316879850. The cubic root of 7023728 is about 191.5090175204.

The spelling of 7023728 in words is "seven million, twenty-three thousand, seven hundred twenty-eight".