7984005 has 8 divisors (see below), whose sum is σ = 12774432. Its totient is φ = 4258128.

The previous prime is 7984003. The next prime is 7984027. The reversal of 7984005 is 5004897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7984005 - 2¹ = 7984003 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7984001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 266119 + ... + 266148.

It is an arithmetic number, because the mean of its divisors is an integer number (1596804).

Almost surely, 2^7984005 is an apocalyptic number.

It is an amenable number.

7984005 is a deficient number, since it is larger than the sum of its proper divisors (4790427).

7984005 is a wasteful number, since it uses less digits than its factorization.

7984005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532275.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 7984005 is about 2825.5981667604. The cubic root of 7984005 is about 199.8666194012.

The spelling of 7984005 in words is "seven million, nine hundred eighty-four thousand, five".