98689864 has 64 divisors (see below), whose sum is σ = 235146240. Its totient is φ = 37774080.

The previous prime is 98689853. The next prime is 98689889. The reversal of 98689864 is 46898689.

It is a junction number, because it is equal to n+sod(n) for n = 98689799 and 98689808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20382 + ... + 24754.

It is an arithmetic number, because the mean of its divisors is an integer number (3674160).

Almost surely, 2^98689864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98689864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117573120).

98689864 is an abundant number, since it is smaller than the sum of its proper divisors (136456376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98689864 is a wasteful number, since it uses less digits than its factorization.

98689864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430 (or 4426 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 58.

The square root of 98689864 is about 9934.2772258479. The cubic root of 98689864 is about 462.1229285023.

The spelling of 98689864 in words is "ninety-eight million, six hundred eighty-nine thousand, eight hundred sixty-four".