98684289 has 12 divisors (see below), whose sum is σ = 155502672. Its totient is φ = 59808600.

The previous prime is 98684273. The next prime is 98684293. The reversal of 98684289 is 98248689.

It is not a de Polignac number, because 98684289 - 2⁴ = 98684273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98684189) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 498307 + ... + 498504.

It is an arithmetic number, because the mean of its divisors is an integer number (12958556).

Almost surely, 2^98684289 is an apocalyptic number.

98684289 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

98684289 is a deficient number, since it is larger than the sum of its proper divisors (56818383).

98684289 is a wasteful number, since it uses less digits than its factorization.

98684289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996828 (or 996825 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 98684289 is about 9933.9966277425. The cubic root of 98684289 is about 462.1142265487.

Subtracting from 98684289 its reverse (98248689), we obtain a square (435600 = 660²).

The spelling of 98684289 in words is "ninety-eight million, six hundred eighty-four thousand, two hundred eighty-nine".