7005985989 has 8 divisors (see below), whose sum is σ = 9472882752. Its totient is φ = 4604873280.

The previous prime is 7005985951. The next prime is 7005985999. The reversal of 7005985989 is 9895895007.

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

It is not a de Polignac number, because 7005985989 - 2⁹ = 7005985477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7005985939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16445764 + ... + 16446189.

It is an arithmetic number, because the mean of its divisors is an integer number (1184110344).

Almost surely, 2^7005985989 is an apocalyptic number.

It is an amenable number.

7005985989 is a deficient number, since it is larger than the sum of its proper divisors (2466896763).

7005985989 is a wasteful number, since it uses less digits than its factorization.

7005985989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32892027.

The product of its (nonzero) digits is 8164800, while the sum is 60.

The square root of 7005985989 is about 83701.7681354462. The cubic root of 7005985989 is about 1913.4763028940.

The spelling of 7005985989 in words is "seven billion, five million, nine hundred eighty-five thousand, nine hundred eighty-nine".