7984089 has 20 divisors (see below), whose sum is σ = 12005620. Its totient is φ = 5287680.

The previous prime is 7984037. The next prime is 7984121. The reversal of 7984089 is 9804897.

It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 1265625 = 2592^2 + 1125^2 .

It is not a de Polignac number, because 7984089 - 2¹⁹ = 7459801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7984789) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19317 + ... + 19725.

It is an arithmetic number, because the mean of its divisors is an integer number (600281).

Almost surely, 2^7984089 is an apocalyptic number.

It is an amenable number.

7984089 is a deficient number, since it is larger than the sum of its proper divisors (4021531).

7984089 is a wasteful number, since it uses less digits than its factorization.

7984089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 653 counting only the distinct ones).

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

The square root of 7984089 is about 2825.6130308307. The cubic root of 7984089 is about 199.8673203333.

The spelling of 7984089 in words is "seven million, nine hundred eighty-four thousand, eighty-nine".