98865665 has 16 divisors (see below), whose sum is σ = 125783040. Its totient is φ = 74468160.

The previous prime is 98865649. The next prime is 98865673. The reversal of 98865665 is 56656889.

It is a happy number.

It is not a de Polignac number, because 98865665 - 2⁴ = 98865649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2885 + ... + 14354.

It is an arithmetic number, because the mean of its divisors is an integer number (7861440).

Almost surely, 2^98865665 is an apocalyptic number.

It is an amenable number.

98865665 is a deficient number, since it is larger than the sum of its proper divisors (26917375).

98865665 is a wasteful number, since it uses less digits than its factorization.

98865665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17312.

The product of its digits is 3110400, while the sum is 53.

The square root of 98865665 is about 9943.1214917650. The cubic root of 98865665 is about 462.3971663265.

It can be divided in two parts, 9886 and 5665, that added together give a palindrome (15551).

The spelling of 98865665 in words is "ninety-eight million, eight hundred sixty-five thousand, six hundred sixty-five".