98739864441 has 9 divisors (see below), whose sum is σ = 142625610309. Its totient is φ = 65825947836.

The previous prime is 98739864401. The next prime is 98739864451. The reversal of 98739864441 is 14446893789.

The square root of 98739864441 is 314229.

It is a perfect power (a square), and thus also a powerful number.

98739864441 is a `hidden beast` number, since 9 + 87 + 39 + 86 + 4 + 441 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 98739864441 - 2¹¹ = 98739862393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98739864401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 890316 + ... + 995058.

Almost surely, 2^98739864441 is an apocalyptic number.

98739864441 is the 314229-th square number.

98739864441 is the 157115-th centered octagonal number.

It is an amenable number.

98739864441 is a deficient number, since it is larger than the sum of its proper divisors (43885745868).

98739864441 is an frugal number, since it uses more digits than its factorization.

98739864441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209492 (or 104746 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 98739864441 in words is "ninety-eight billion, seven hundred thirty-nine million, eight hundred sixty-four thousand, four hundred forty-one".