89998665 has 8 divisors (see below), whose sum is σ = 143997888. Its totient is φ = 47999280.

The previous prime is 89998633. The next prime is 89998693. The reversal of 89998665 is 56689998.

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

It is not a de Polignac number, because 89998665 - 2⁵ = 89998633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89998599 and 89998608.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2999941 + ... + 2999970.

It is an arithmetic number, because the mean of its divisors is an integer number (17999736).

Almost surely, 2^89998665 is an apocalyptic number.

It is an amenable number.

89998665 is a deficient number, since it is larger than the sum of its proper divisors (53999223).

89998665 is a wasteful number, since it uses less digits than its factorization.

89998665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999919.

The product of its digits is 8398080, while the sum is 60.

The square root of 89998665 is about 9486.7626195663. The cubic root of 89998665 is about 448.1382588391.

The spelling of 89998665 in words is "eighty-nine million, nine hundred ninety-eight thousand, six hundred sixty-five".