8004994891 has 8 divisors (see below), whose sum is σ = 8095010144. Its totient is φ = 7915216320.

The previous prime is 8004994889. The next prime is 8004994913. The reversal of 8004994891 is 1984994008.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8004994891 - 2¹ = 8004994889 is a prime.

It is a super-2 number, since 2×8004994891² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8004994841) 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, 9295 + ... + 126871.

It is an arithmetic number, because the mean of its divisors is an integer number (1011876268).

Almost surely, 2^8004994891 is an apocalyptic number.

8004994891 is a deficient number, since it is larger than the sum of its proper divisors (90015253).

8004994891 is a wasteful number, since it uses less digits than its factorization.

8004994891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118341.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 8004994891 is about 89470.6370324924. The cubic root of 8004994891 is about 2000.4161543185.

The spelling of 8004994891 in words is "eight billion, four million, nine hundred ninety-four thousand, eight hundred ninety-one".