103688289 has 8 divisors (see below), whose sum is σ = 153612320. Its totient is φ = 69125508.

The previous prime is 103688281. The next prime is 103688297. The reversal of 103688289 is 982886301.

103688289 is a `hidden beast` number, since 1 + 0 + 368 + 8 + 289 = 666.

It is an interprime number because it is at equal distance from previous prime (103688281) and next prime (103688297).

It is not a de Polignac number, because 103688289 - 2³ = 103688281 is a prime.

It is a super-2 number, since 2×103688289² = 21502522551495042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103688281) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1920127 + ... + 1920180.

It is an arithmetic number, because the mean of its divisors is an integer number (19201540).

Almost surely, 2^103688289 is an apocalyptic number.

It is an amenable number.

103688289 is a deficient number, since it is larger than the sum of its proper divisors (49924031).

103688289 is an equidigital number, since it uses as much as digits as its factorization.

103688289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840316 (or 3840310 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 103688289 is about 10182.7446692923. The cubic root of 103688289 is about 469.7966360271.

The spelling of 103688289 in words is "one hundred three million, six hundred eighty-eight thousand, two hundred eighty-nine".