98189285 has 4 divisors (see below), whose sum is σ = 117827148. Its totient is φ = 78551424.

The previous prime is 98189269. The next prime is 98189291. The reversal of 98189285 is 58298189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58298189 = 47 ⋅1240387.

It can be written as a sum of positive squares in 2 ways, for example, as 77404804 + 20784481 = 8798^2 + 4559^2 .

It is a cyclic number.

It is not a de Polignac number, because 98189285 - 2⁴ = 98189269 is a prime.

It is a super-2 number, since 2×98189285² = 19282271377622450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9818924 + ... + 9818933.

It is an arithmetic number, because the mean of its divisors is an integer number (29456787).

Almost surely, 2^98189285 is an apocalyptic number.

It is an amenable number.

98189285 is a deficient number, since it is larger than the sum of its proper divisors (19637863).

98189285 is a wasteful number, since it uses less digits than its factorization.

98189285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19637862.

The product of its digits is 414720, while the sum is 50.

The square root of 98189285 is about 9909.0506608857. The cubic root of 98189285 is about 461.3402704225.

The spelling of 98189285 in words is "ninety-eight million, one hundred eighty-nine thousand, two hundred eighty-five".