107998 has 8 divisors (see below), whose sum is σ = 176760. Its totient is φ = 49080.

The previous prime is 107981. The next prime is 107999. The reversal of 107998 is 899701.

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 (107999) by changing a digit.

107998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 2433 + ... + 2476.

It is an arithmetic number, because the mean of its divisors is an integer number (22095).

2¹⁰⁷⁹⁹⁸ is an apocalyptic number.

107998 is a deficient number, since it is larger than the sum of its proper divisors (68762).

107998 is a wasteful number, since it uses less digits than its factorization.

107998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4922.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 107998 is about 328.6304915859. The cubic root of 107998 is about 47.6217375941.

It can be divided in two parts, 10 and 7998, that added together give a palindrome (8008).

The spelling of 107998 in words is "one hundred seven thousand, nine hundred ninety-eight".