8973916085 has 4 divisors (see below), whose sum is σ = 10768699308. Its totient is φ = 7179132864.

The previous prime is 8973916067. The next prime is 8973916109. The reversal of 8973916085 is 5806193798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6803940196 + 2169975889 = 82486^2 + 46583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8973916085 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8973916085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897391604 + ... + 897391613.

It is an arithmetic number, because the mean of its divisors is an integer number (2692174827).

Almost surely, 2^8973916085 is an apocalyptic number.

It is an amenable number.

8973916085 is a deficient number, since it is larger than the sum of its proper divisors (1794783223).

8973916085 is a wasteful number, since it uses less digits than its factorization.

8973916085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794783222.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The square root of 8973916085 is about 94730.7557501786. The cubic root of 8973916085 is about 2078.0723700874.

The spelling of 8973916085 in words is "eight billion, nine hundred seventy-three million, nine hundred sixteen thousand, eighty-five".