98728033 has 4 divisors (see below), whose sum is σ = 98750980. Its totient is φ = 98705088.

The previous prime is 98728031. The next prime is 98728067. The reversal of 98728033 is 33082789.

It is a happy number.

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 16136289 + 82591744 = 4017^2 + 9088^2 .

It is a 3-Lehmer number, since φ(98728033) divides (98728033-1)³.

It is a cyclic number.

It is not a de Polignac number, because 98728033 - 2¹ = 98728031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98728031) 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 3 ways as a sum of consecutive naturals, for example, 2868 + ... + 14341.

It is an arithmetic number, because the mean of its divisors is an integer number (24687745).

Almost surely, 2^98728033 is an apocalyptic number.

98728033 is the 5737-th octagonal number.

It is an amenable number.

98728033 is a deficient number, since it is larger than the sum of its proper divisors (22947).

98728033 is a wasteful number, since it uses less digits than its factorization.

98728033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22946.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 98728033 is about 9936.1981159798. The cubic root of 98728033 is about 462.1824972559.

The spelling of 98728033 in words is "ninety-eight million, seven hundred twenty-eight thousand, thirty-three".