98187021 has 12 divisors (see below), whose sum is σ = 142138048. Its totient is φ = 65313864.

The previous prime is 98186999. The next prime is 98187031. The reversal of 98187021 is 12078189.

It is not a de Polignac number, because 98187021 - 2¹¹ = 98184973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98187031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7615 + ... + 15948.

Almost surely, 2^98187021 is an apocalyptic number.

It is an amenable number.

98187021 is a deficient number, since it is larger than the sum of its proper divisors (43951027).

98187021 is a wasteful number, since it uses less digits than its factorization.

98187021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24032 (or 24029 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 98187021 is about 9908.9364212311. The cubic root of 98187021 is about 461.3367246099.

The spelling of 98187021 in words is "ninety-eight million, one hundred eighty-seven thousand, twenty-one".