7980028 has 24 divisors (see below), whose sum is σ = 16120832. Its totient is φ = 3385584.

The previous prime is 7980013. The next prime is 7980029. The reversal of 7980028 is 8200897.

It is a happy number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 7979975 and 7980002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7980029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501 + ... + 4267.

Almost surely, 2^7980028 is an apocalyptic number.

It is an amenable number.

7980028 is an abundant number, since it is smaller than the sum of its proper divisors (8140804).

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

7980028 is a wasteful number, since it uses less digits than its factorization.

7980028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2879 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 7980028 is about 2824.8943343070. The cubic root of 7980028 is about 199.8334279740.

The spelling of 7980028 in words is "seven million, nine hundred eighty thousand, twenty-eight".