103987073 has 4 divisors (see below), whose sum is σ = 104105988. Its totient is φ = 103868160.

The previous prime is 103987063. The next prime is 103987099. The reversal of 103987073 is 370789301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7711729 + 96275344 = 2777^2 + 9812^2 .

It is a cyclic number.

It is not a de Polignac number, because 103987073 - 2¹⁰ = 103986049 is a prime.

It is a super-3 number, since 3×103987073³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103987033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58136 + ... + 59897.

It is an arithmetic number, because the mean of its divisors is an integer number (26026497).

Almost surely, 2^103987073 is an apocalyptic number.

It is an amenable number.

103987073 is a deficient number, since it is larger than the sum of its proper divisors (118915).

103987073 is an equidigital number, since it uses as much as digits as its factorization.

103987073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118914.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 103987073 is about 10197.4052091696. The cubic root of 103987073 is about 470.2474523115.

It can be divided in two parts, 10398 and 7073, that added together give a palindrome (17471).

The spelling of 103987073 in words is "one hundred three million, nine hundred eighty-seven thousand, seventy-three".