98888889 has 8 divisors (see below), whose sum is σ = 143838432. Its totient is φ = 59932640.

The previous prime is 98888861. The next prime is 98888921.

98888889 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 98888889 - 2⁸ = 98888633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98888819) 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, 1498284 + ... + 1498349.

It is an arithmetic number, because the mean of its divisors is an integer number (17979804).

Almost surely, 2^98888889 is an apocalyptic number.

It is an amenable number.

98888889 is a deficient number, since it is larger than the sum of its proper divisors (44949543).

98888889 is a wasteful number, since it uses less digits than its factorization.

98888889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996647.

The product of its digits is 21233664, while the sum is 66.

The square root of 98888889 is about 9944.2892657042. The cubic root of 98888889 is about 462.4333698998.

The spelling of 98888889 in words is "ninety-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".