98638 has 8 divisors (see below), whose sum is σ = 149400. Its totient is φ = 48840.

The previous prime is 98627. The next prime is 98639. The reversal of 98638 is 83689.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98639) 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, 133 + ... + 463.

It is an arithmetic number, because the mean of its divisors is an integer number (18675).

2⁹⁸⁶³⁸ is an apocalyptic number.

98638 is a deficient number, since it is larger than the sum of its proper divisors (50762).

98638 is a wasteful number, since it uses less digits than its factorization.

98638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482.

The product of its digits is 10368, while the sum is 34.

The square root of 98638 is about 314.0668718601. The cubic root of 98638 is about 46.2041961919.

It can be divided in two parts, 986 and 38, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 98638 in words is "ninety-eight thousand, six hundred thirty-eight".