103687 has 2 divisors, whose sum is σ = 103688. Its totient is φ = 103686.

The previous prime is 103681. The next prime is 103699. The reversal of 103687 is 786301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103687 - 2¹⁵ = 70919 is a prime.

103687 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51843 + 51844.

It is an arithmetic number, because the mean of its divisors is an integer number (51844).

103687 is a Friedman number, since it can be written as 7+80*6^(3+1), using all its digits and the basic arithmetic operations.

2¹⁰³⁶⁸⁷ is an apocalyptic number.

103687 is a deficient number, since it is larger than the sum of its proper divisors (1).

103687 is an equidigital number, since it uses as much as digits as its factorization.

103687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 103687 is about 322.0046583514. The cubic root of 103687 is about 46.9794689262.

Adding to 103687 its reverse (786301), we get a palindrome (889988).

The spelling of 103687 in words is "one hundred three thousand, six hundred eighty-seven".