103689217 has 8 divisors (see below), whose sum is σ = 104982696. Its totient is φ = 102400512.

The previous prime is 103689169. The next prime is 103689227. The reversal of 103689217 is 712986301.

It can be written as a sum of positive squares in 4 ways, for example, as 646416 + 103042801 = 804^2 + 10151^2 .

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 103689217 - 2²³ = 95300609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103689227) 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, 62523 + ... + 64159.

It is an arithmetic number, because the mean of its divisors is an integer number (13122837).

Almost surely, 2^103689217 is an apocalyptic number.

It is an amenable number.

103689217 is a deficient number, since it is larger than the sum of its proper divisors (1293479).

103689217 is an equidigital number, since it uses as much as digits as its factorization.

103689217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 103689217 is about 10182.7902364725. The cubic root of 103689217 is about 469.7980375675.

The spelling of 103689217 in words is "one hundred three million, six hundred eighty-nine thousand, two hundred seventeen".