98587 has 4 divisors (see below), whose sum is σ = 99216. Its totient is φ = 97960.

The previous prime is 98573. The next prime is 98597. The reversal of 98587 is 78589.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 98587 - 2⁷ = 98459 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

98587 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (98507) 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, 153 + ... + 469.

It is an arithmetic number, because the mean of its divisors is an integer number (24804).

2⁹⁸⁵⁸⁷ is an apocalyptic number.

98587 is a deficient number, since it is larger than the sum of its proper divisors (629).

98587 is a wasteful number, since it uses less digits than its factorization.

98587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628.

The product of its digits is 20160, while the sum is 37.

The square root of 98587 is about 313.9856684628. The cubic root of 98587 is about 46.1962316473.

It can be divided in two parts, 9858 and 7, that multiplied together give a triangular number (69006 = T₃₇₁).

The spelling of 98587 in words is "ninety-eight thousand, five hundred eighty-seven".