98989885 has 8 divisors (see below), whose sum is σ = 120735576. Its totient is φ = 77893440.

The previous prime is 98989879. The next prime is 98989889. The reversal of 98989885 is 58898989.

It can be written as a sum of positive squares in 4 ways, for example, as 10517049 + 88472836 = 3243^2 + 9406^2 .

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

It is not a de Polignac number, because 98989885 - 2¹³ = 98981693 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 (98989889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161974 + ... + 162583.

It is an arithmetic number, because the mean of its divisors is an integer number (15091947).

Almost surely, 2^98989885 is an apocalyptic number.

It is an amenable number.

98989885 is a deficient number, since it is larger than the sum of its proper divisors (21745691).

98989885 is a wasteful number, since it uses less digits than its factorization.

98989885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324623.

The product of its digits is 14929920, while the sum is 64.

The square root of 98989885 is about 9949.3660602071. The cubic root of 98989885 is about 462.5907452815.

The spelling of 98989885 in words is "ninety-eight million, nine hundred eighty-nine thousand, eight hundred eighty-five".