98031665 has 4 divisors (see below), whose sum is σ = 117638004. Its totient is φ = 78425328.

The previous prime is 98031601. The next prime is 98031667. The reversal of 98031665 is 56613089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56613089 = 13 ⋅4354853.

It can be written as a sum of positive squares in 2 ways, for example, as 20802721 + 77228944 = 4561^2 + 8788^2 .

It is a cyclic number.

It is not a de Polignac number, because 98031665 - 2⁶ = 98031601 is a prime.

It is a super-2 number, since 2×98031665² = 19220414685344450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98031667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9803162 + ... + 9803171.

It is an arithmetic number, because the mean of its divisors is an integer number (29409501).

Almost surely, 2^98031665 is an apocalyptic number.

It is an amenable number.

98031665 is a deficient number, since it is larger than the sum of its proper divisors (19606339).

98031665 is a wasteful number, since it uses less digits than its factorization.

98031665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19606338.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 98031665 is about 9901.0941314584. The cubic root of 98031665 is about 461.0932801393.

The spelling of 98031665 in words is "ninety-eight million, thirty-one thousand, six hundred sixty-five".