7028872 has 8 divisors (see below), whose sum is σ = 13179150. Its totient is φ = 3514432.

The previous prime is 7028851. The next prime is 7028873. The reversal of 7028872 is 2788207.

It can be written as a sum of positive squares in only one way, i.e., 7001316 + 27556 = 2646^2 + 166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (7028873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439297 + ... + 439312.

Almost surely, 2^7028872 is an apocalyptic number.

It is an amenable number.

7028872 is a deficient number, since it is larger than the sum of its proper divisors (6150278).

7028872 is a wasteful number, since it uses less digits than its factorization.

7028872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878615 (or 878611 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 7028872 is about 2651.2019915502. The cubic root of 7028872 is about 191.5557582252. Note that the first 3 decimals are identical.

The spelling of 7028872 in words is "seven million, twenty-eight thousand, eight hundred seventy-two".