98109865 has 8 divisors (see below), whose sum is σ = 134550720. Its totient is φ = 67275312.

The previous prime is 98109827. The next prime is 98109931. The reversal of 98109865 is 56890189.

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

It is a cyclic number.

It is not a de Polignac number, because 98109865 - 2⁹ = 98109353 is a prime.

It is a super-2 number, since 2×98109865² = 19251091220636450, which contains 22 as substring.

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, 1401535 + ... + 1401604.

It is an arithmetic number, because the mean of its divisors is an integer number (16818840).

Almost surely, 2^98109865 is an apocalyptic number.

It is an amenable number.

98109865 is a deficient number, since it is larger than the sum of its proper divisors (36440855).

98109865 is a wasteful number, since it uses less digits than its factorization.

98109865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803151.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 98109865 is about 9905.0424027361. The cubic root of 98109865 is about 461.2158524770.

The spelling of 98109865 in words is "ninety-eight million, one hundred nine thousand, eight hundred sixty-five".