98831 has 4 divisors (see below), whose sum is σ = 103152. Its totient is φ = 94512.

The previous prime is 98809. The next prime is 98837. The reversal of 98831 is 13889.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98831 is a prime.

It is a super-2 number, since 2×98831² = 19535133122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 98794 and 98803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2126 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (25788).

2⁹⁸⁸³¹ is an apocalyptic number.

98831 is a deficient number, since it is larger than the sum of its proper divisors (4321).

98831 is a wasteful number, since it uses less digits than its factorization.

98831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320.

The product of its digits is 1728, while the sum is 29.

The square root of 98831 is about 314.3739811117. The cubic root of 98831 is about 46.2343116988.

It can be divided in two parts, 988 and 31, that multiplied together give a triangular number (30628 = T₂₄₇).

The spelling of 98831 in words is "ninety-eight thousand, eight hundred thirty-one".