98000065 has 4 divisors (see below), whose sum is σ = 117600084. Its totient is φ = 78400048.

The previous prime is 98000059. The next prime is 98000069. The reversal of 98000065 is 56000089.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26749584 + 71250481 = 5172^2 + 8441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98000065 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97999997 and 98000042.

It is not an unprimeable number, because it can be changed into a prime (98000069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9800002 + ... + 9800011.

It is an arithmetic number, because the mean of its divisors is an integer number (29400021).

Almost surely, 2^98000065 is an apocalyptic number.

It is an amenable number.

98000065 is a deficient number, since it is larger than the sum of its proper divisors (19600019).

98000065 is a wasteful number, since it uses less digits than its factorization.

98000065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19600018.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 98000065 is about 9899.4982196069. The cubic root of 98000065 is about 461.0437311372.

The spelling of 98000065 in words is "ninety-eight million, sixty-five", and thus it is an aban number and an uban number.