98644497 has 24 divisors (see below), whose sum is σ = 153396576. Its totient is φ = 56222208.

The previous prime is 98644471. The next prime is 98644517. The reversal of 98644497 is 79444689.

It is not a de Polignac number, because 98644497 - 2⁷ = 98644369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98644417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84238 + ... + 85400.

It is an arithmetic number, because the mean of its divisors is an integer number (6391524).

Almost surely, 2^98644497 is an apocalyptic number.

It is an amenable number.

98644497 is a deficient number, since it is larger than the sum of its proper divisors (54752079).

98644497 is a wasteful number, since it uses less digits than its factorization.

98644497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757 (or 1750 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 98644497 is about 9931.9936065223. The cubic root of 98644497 is about 462.0521061524.

The spelling of 98644497 in words is "ninety-eight million, six hundred forty-four thousand, four hundred ninety-seven".