103890686 has 16 divisors (see below), whose sum is σ = 160041840. Its totient is φ = 50561280.

The previous prime is 103890637. The next prime is 103890713. The reversal of 103890686 is 686098301.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7445 + ... + 16223.

It is an arithmetic number, because the mean of its divisors is an integer number (10002615).

Almost surely, 2^103890686 is an apocalyptic number.

103890686 is a deficient number, since it is larger than the sum of its proper divisors (56151154).

103890686 is an equidigital number, since it uses as much as digits as its factorization.

103890686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8939.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 103890686 is about 10192.6780582926. The cubic root of 103890686 is about 470.1021145259.

The spelling of 103890686 in words is "one hundred three million, eight hundred ninety thousand, six hundred eighty-six".