7982028 has 18 divisors (see below), whose sum is σ = 20176884. Its totient is φ = 2660664.

The previous prime is 7982021. The next prime is 7982053. The reversal of 7982028 is 8202897.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 221723 = 7982028 / (7 + 9 + 8 + 2 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 7981983 and 7982001.

It is not an unprimeable number, because it can be changed into a prime (7982021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110826 + ... + 110897.

It is an arithmetic number, because the mean of its divisors is an integer number (1120938).

Almost surely, 2^7982028 is an apocalyptic number.

It is an amenable number.

7982028 is an abundant number, since it is smaller than the sum of its proper divisors (12194856).

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

7982028 is a wasteful number, since it uses less digits than its factorization.

7982028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221733 (or 221728 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 7982028 is about 2825.2483076714. The cubic root of 7982028 is about 199.8501210429.

The spelling of 7982028 in words is "seven million, nine hundred eighty-two thousand, twenty-eight".