103988 has 6 divisors (see below), whose sum is σ = 181986. Its totient is φ = 51992.

The previous prime is 103981. The next prime is 103991. The reversal of 103988 is 889301.

It is a happy number.

103988 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 68644 + 35344 = 262^2 + 188^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103981) by changing a digit.

103988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12995 + ... + 13002.

It is an arithmetic number, because the mean of its divisors is an integer number (30331).

2¹⁰³⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

103988 is a deficient number, since it is larger than the sum of its proper divisors (77998).

103988 is a wasteful number, since it uses less digits than its factorization.

103988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26001 (or 25999 counting only the distinct ones).

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

The square root of 103988 is about 322.4717041850. The cubic root of 103988 is about 47.0248849659.

The spelling of 103988 in words is "one hundred three thousand, nine hundred eighty-eight".