105398 has 8 divisors (see below), whose sum is σ = 159600. Its totient is φ = 52200.

The previous prime is 105397. The next prime is 105401. The reversal of 105398 is 893501.

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

It is a super-2 number, since 2×105398² = 22217476808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128 + ... + 476.

It is an arithmetic number, because the mean of its divisors is an integer number (19950).

2¹⁰⁵³⁹⁸ is an apocalyptic number.

105398 is a deficient number, since it is larger than the sum of its proper divisors (54202).

105398 is a wasteful number, since it uses less digits than its factorization.

105398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 105398 is about 324.6505813948. The cubic root of 105398 is about 47.2364723365.

Adding to 105398 its reverse (893501), we get a palindrome (998899).

The spelling of 105398 in words is "one hundred five thousand, three hundred ninety-eight".