7989480 has 48 divisors (see below), whose sum is σ = 25966980. Its totient is φ = 2130432.

The previous prime is 7989469. The next prime is 7989491. The reversal of 7989480 is 849897.

It is an interprime number because it is at equal distance from previous prime (7989469) and next prime (7989491).

It can be written as a sum of positive squares in 2 ways, for example, as 7650756 + 338724 = 2766^2 + 582^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10737 + ... + 11456.

Almost surely, 2^7989480 is an apocalyptic number.

It is an amenable number.

7989480 is an abundant number, since it is smaller than the sum of its proper divisors (17977500).

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

7989480 is a wasteful number, since it uses less digits than its factorization.

7989480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22210 (or 22203 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 7989480 is about 2826.5668221360. The cubic root of 7989480 is about 199.9122948780.

The spelling of 7989480 in words is "seven million, nine hundred eighty-nine thousand, four hundred eighty".