98665081 has 4 divisors (see below), whose sum is σ = 103858000. Its totient is φ = 93472164.

The previous prime is 98665067. The next prime is 98665097. The reversal of 98665081 is 18056689.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98665081 - 2⁷ = 98664953 is a prime.

It is a super-2 number, since 2×98665081² = 19469596417473122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98665031) 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, 2596431 + ... + 2596468.

It is an arithmetic number, because the mean of its divisors is an integer number (25964500).

Almost surely, 2^98665081 is an apocalyptic number.

It is an amenable number.

98665081 is a deficient number, since it is larger than the sum of its proper divisors (5192919).

98665081 is a wasteful number, since it uses less digits than its factorization.

98665081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5192918.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 98665081 is about 9933.0297996130. The cubic root of 98665081 is about 462.0842424918.

The spelling of 98665081 in words is "ninety-eight million, six hundred sixty-five thousand, eighty-one".