103987 has 8 divisors (see below), whose sum is σ = 118160. Its totient is φ = 90720.

The previous prime is 103981. The next prime is 103991. The reversal of 103987 is 789301.

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

It is a cyclic number.

It is not a de Polignac number, because 103987 - 2³ = 103979 is a prime.

It is a Duffinian number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37 + ... + 457.

It is an arithmetic number, because the mean of its divisors is an integer number (14770).

2¹⁰³⁹⁸⁷ is an apocalyptic number.

103987 is a deficient number, since it is larger than the sum of its proper divisors (14173).

103987 is a wasteful number, since it uses less digits than its factorization.

103987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 103987 is about 322.4701536577. The cubic root of 103987 is about 47.0247342272.

The spelling of 103987 in words is "one hundred three thousand, nine hundred eighty-seven".