98686123 has 4 divisors (see below), whose sum is σ = 102976848. Its totient is φ = 94395400.

The previous prime is 98686117. The next prime is 98686163. The reversal of 98686123 is 32168689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32168689 = 7 ⋅4595527.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98686123 is a prime.

It is a super-2 number, since 2×98686123² = 19477901745542258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98686123.

It is not an unprimeable number, because it can be changed into a prime (98686163) 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, 2145328 + ... + 2145373.

It is an arithmetic number, because the mean of its divisors is an integer number (25744212).

Almost surely, 2^98686123 is an apocalyptic number.

98686123 is a deficient number, since it is larger than the sum of its proper divisors (4290725).

98686123 is a wasteful number, since it uses less digits than its factorization.

98686123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290724.

The product of its digits is 124416, while the sum is 43.

The square root of 98686123 is about 9934.0889365860. The cubic root of 98686123 is about 462.1170892545.

The spelling of 98686123 in words is "ninety-eight million, six hundred eighty-six thousand, one hundred twenty-three".