7073728 has 14 divisors (see below), whose sum is σ = 14037056. Its totient is φ = 3536832.

The previous prime is 7073707. The next prime is 7073741. The reversal of 7073728 is 8273707.

It is a junction number, because it is equal to n+sod(n) for n = 7073693 and 7073702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55200 + ... + 55327.

Almost surely, 2^7073728 is an apocalyptic number.

It is an amenable number.

7073728 is a deficient number, since it is larger than the sum of its proper divisors (6963328).

7073728 is a wasteful number, since it uses less digits than its factorization.

7073728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110539 (or 110529 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 7073728 is about 2659.6480970234. The cubic root of 7073728 is about 191.9623768874.

The spelling of 7073728 in words is "seven million, seventy-three thousand, seven hundred twenty-eight".