89988855 has 16 divisors (see below), whose sum is σ = 157071744. Its totient is φ = 43630880.

The previous prime is 89988853. The next prime is 89988863. The reversal of 89988855 is 55888998.

It is not a de Polignac number, because 89988855 - 2¹ = 89988853 is a prime.

It is a super-2 number, since 2×89988855² = 16195988048422050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89988851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272529 + ... + 272858.

It is an arithmetic number, because the mean of its divisors is an integer number (9816984).

Almost surely, 2^89988855 is an apocalyptic number.

89988855 is a deficient number, since it is larger than the sum of its proper divisors (67082889).

89988855 is a wasteful number, since it uses less digits than its factorization.

89988855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545406.

The product of its digits is 8294400, while the sum is 60.

The square root of 89988855 is about 9486.2455692439. The cubic root of 89988855 is about 448.1219756492.

The spelling of 89988855 in words is "eighty-nine million, nine hundred eighty-eight thousand, eight hundred fifty-five".