103689856 has 32 divisors (see below), whose sum is σ = 211384800. Its totient is φ = 50636544.

The previous prime is 103689853. The next prime is 103689863. The reversal of 103689856 is 658986301.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (103689853) 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 3 ways as a sum of consecutive naturals, for example, 3916 + ... + 14923.

It is an arithmetic number, because the mean of its divisors is an integer number (6605775).

Almost surely, 2^103689856 is an apocalyptic number.

103689856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

103689856 is an abundant number, since it is smaller than the sum of its proper divisors (107694944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103689856 is an equidigital number, since it uses as much as digits as its factorization.

103689856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18896 (or 18884 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 103689856 is about 10182.8216128930. The cubic root of 103689856 is about 469.7990026320.

The spelling of 103689856 in words is "one hundred three million, six hundred eighty-nine thousand, eight hundred fifty-six".