103686321 has 8 divisors (see below), whose sum is σ = 141985024. Its totient is φ = 67255920.

The previous prime is 103686313. The next prime is 103686329. The reversal of 103686321 is 123686301.

It is an interprime number because it is at equal distance from previous prime (103686313) and next prime (103686329).

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

It is not a de Polignac number, because 103686321 - 2³ = 103686313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103686329) 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, 466945 + ... + 467166.

It is an arithmetic number, because the mean of its divisors is an integer number (17748128).

Almost surely, 2^103686321 is an apocalyptic number.

It is an amenable number.

103686321 is a deficient number, since it is larger than the sum of its proper divisors (38298703).

103686321 is an equidigital number, since it uses as much as digits as its factorization.

103686321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934151.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 103686321 is about 10182.6480347697. The cubic root of 103686321 is about 469.7936637672.

The spelling of 103686321 in words is "one hundred three million, six hundred eighty-six thousand, three hundred twenty-one".