98216931 has 4 divisors (see below), whose sum is σ = 130955912. Its totient is φ = 65477952.

The previous prime is 98216917. The next prime is 98216933. The reversal of 98216931 is 13961289.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13961289 = 3 ⋅4653763.

It is not a de Polignac number, because 98216931 - 2¹⁹ = 97692643 is a prime.

It is a super-2 number, since 2×98216931² = 19293131070117522, 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 98216931.

It is not an unprimeable number, because it can be changed into a prime (98216933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16369486 + ... + 16369491.

It is an arithmetic number, because the mean of its divisors is an integer number (32738978).

Almost surely, 2^98216931 is an apocalyptic number.

98216931 is a deficient number, since it is larger than the sum of its proper divisors (32738981).

98216931 is a wasteful number, since it uses less digits than its factorization.

98216931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32738980.

The product of its digits is 23328, while the sum is 39.

The square root of 98216931 is about 9910.4455500245. The cubic root of 98216931 is about 461.3835644075.

The spelling of 98216931 in words is "ninety-eight million, two hundred sixteen thousand, nine hundred thirty-one".