98643321 has 18 divisors (see below), whose sum is σ = 165748362. Its totient is φ = 56367360.

The previous prime is 98643289. The next prime is 98643331. The reversal of 98643321 is 12334689.

98643321 is a `hidden beast` number, since 9 + 8 + 643 + 3 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 76317696 + 22325625 = 8736^2 + 4725^2 .

It is not a de Polignac number, because 98643321 - 2⁵ = 98643289 is a prime.

It is a Curzon number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (98643331) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 111400 + ... + 112281.

Almost surely, 2^98643321 is an apocalyptic number.

It is an amenable number.

98643321 is a deficient number, since it is larger than the sum of its proper divisors (67105041).

98643321 is a wasteful number, since it uses less digits than its factorization.

98643321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223701 (or 223691 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 98643321 is about 9931.9344037302. The cubic root of 98643321 is about 462.0502700120.

The spelling of 98643321 in words is "ninety-eight million, six hundred forty-three thousand, three hundred twenty-one".