98666689 has 8 divisors (see below), whose sum is σ = 107874432. Its totient is φ = 89498640.

The previous prime is 98666683. The next prime is 98666693.

98666689 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 98666689 - 2²³ = 90278081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98666683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4594 + ... + 14779.

It is an arithmetic number, because the mean of its divisors is an integer number (13484304).

Almost surely, 2^98666689 is an apocalyptic number.

It is an amenable number.

98666689 is a deficient number, since it is larger than the sum of its proper divisors (9207743).

98666689 is a wasteful number, since it uses less digits than its factorization.

98666689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19847.

The product of its digits is 6718464, while the sum is 58.

The square root of 98666689 is about 9933.1107413539. The cubic root of 98666689 is about 462.0867527599.

The spelling of 98666689 in words is "ninety-eight million, six hundred sixty-six thousand, six hundred eighty-nine".