98989893 has 12 divisors (see below), whose sum is σ = 143728780. Its totient is φ = 65650176.

The previous prime is 98989889. The next prime is 98989903. The reversal of 98989893 is 39898989.

It can be written as a sum of positive squares in 2 ways, for example, as 57426084 + 41563809 = 7578^2 + 6447^2 .

It is not a de Polignac number, because 98989893 - 2² = 98989889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 98989893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98989843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26758 + ... + 30231.

Almost surely, 2^98989893 is an apocalyptic number.

It is an amenable number.

98989893 is a deficient number, since it is larger than the sum of its proper divisors (44738887).

98989893 is a wasteful number, since it uses less digits than its factorization.

98989893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57188 (or 57185 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 63.

The square root of 98989893 is about 9949.3664622427. The cubic root of 98989893 is about 462.5907577431.

It can be divided in two parts, 9898 and 9893, that added together give a palindrome (19791).

The spelling of 98989893 in words is "ninety-eight million, nine hundred eighty-nine thousand, eight hundred ninety-three".