8985555897 has 4 divisors (see below), whose sum is σ = 11980741200. Its totient is φ = 5990370596.

The previous prime is 8985555851. The next prime is 8985555907. The reversal of 8985555897 is 7985555898.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8985555897 - 2⁷ = 8985555769 is a prime.

It is a super-2 number, since 2×8985555897² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8985555497) 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, 1497592647 + ... + 1497592652.

It is an arithmetic number, because the mean of its divisors is an integer number (2995185300).

Almost surely, 2^8985555897 is an apocalyptic number.

It is an amenable number.

8985555897 is a deficient number, since it is larger than the sum of its proper divisors (2995185303).

8985555897 is a wasteful number, since it uses less digits than its factorization.

8985555897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995185302.

The product of its digits is 181440000, while the sum is 69.

The square root of 8985555897 is about 94792.1721293483. The cubic root of 8985555897 is about 2078.9704514822.

Subtracting from 8985555897 its reverse (7985555898), we obtain a palindrome (999999999).

The spelling of 8985555897 in words is "eight billion, nine hundred eighty-five million, five hundred fifty-five thousand, eight hundred ninety-seven".