8985509215 has 4 divisors (see below), whose sum is σ = 10782611064. Its totient is φ = 7188407368.

The previous prime is 8985509213. The next prime is 8985509227. The reversal of 8985509215 is 5129055898.

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

It is a cyclic number.

It is not a de Polignac number, because 8985509215 - 2¹ = 8985509213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8985509213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898550917 + ... + 898550926.

It is an arithmetic number, because the mean of its divisors is an integer number (2695652766).

Almost surely, 2^8985509215 is an apocalyptic number.

8985509215 is a deficient number, since it is larger than the sum of its proper divisors (1797101849).

8985509215 is a wasteful number, since it uses less digits than its factorization.

8985509215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797101848.

The product of its (nonzero) digits is 1296000, while the sum is 52.

The square root of 8985509215 is about 94791.9258956162. The cubic root of 8985509215 is about 2078.9668512350.

The spelling of 8985509215 in words is "eight billion, nine hundred eighty-five million, five hundred nine thousand, two hundred fifteen".