7086728 has 24 divisors (see below), whose sum is σ = 14607390. Its totient is φ = 3220800.

The previous prime is 7086719. The next prime is 7086731. The reversal of 7086728 is 8276807.

It can be written as a sum of positive squares in only one way, i.e., 7086244 + 484 = 2662^2 + 22^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7086691 and 7086700.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2693 + ... + 4628.

Almost surely, 2^7086728 is an apocalyptic number.

It is an amenable number.

7086728 is an abundant number, since it is smaller than the sum of its proper divisors (7520662).

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

7086728 is a wasteful number, since it uses less digits than its factorization.

7086728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7349 (or 7334 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 7086728 is about 2662.0909075387. The cubic root of 7086728 is about 192.0799001942.

The spelling of 7086728 in words is "seven million, eighty-six thousand, seven hundred twenty-eight".