98129665 has 4 divisors (see below), whose sum is σ = 117755604. Its totient is φ = 78503728.

The previous prime is 98129651. The next prime is 98129671. The reversal of 98129665 is 56692189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24049216 + 74080449 = 4904^2 + 8607^2 .

It is a cyclic number.

It is not a de Polignac number, because 98129665 - 2²⁵ = 64575233 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 9812962 + ... + 9812971.

It is an arithmetic number, because the mean of its divisors is an integer number (29438901).

Almost surely, 2^98129665 is an apocalyptic number.

It is an amenable number.

98129665 is a deficient number, since it is larger than the sum of its proper divisors (19625939).

98129665 is a wasteful number, since it uses less digits than its factorization.

98129665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625938.

The product of its digits is 233280, while the sum is 46.

The square root of 98129665 is about 9906.0418432389. The cubic root of 98129665 is about 461.2468770827.

The spelling of 98129665 in words is "ninety-eight million, one hundred twenty-nine thousand, six hundred sixty-five".