103903956 has 144 divisors (see below), whose sum is σ = 297198720. Its totient is φ = 30401280.

The previous prime is 103903937. The next prime is 103903957. The reversal of 103903956 is 659309301.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 103903956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103903957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1463401 + ... + 1463471.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880).

Almost surely, 2^103903956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103903956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148599360).

103903956 is an abundant number, since it is smaller than the sum of its proper divisors (193294764).

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

103903956 is a wasteful number, since it uses less digits than its factorization.

103903956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 103903956 is about 10193.3289949849. The cubic root of 103903956 is about 470.1221291192.

The spelling of 103903956 in words is "one hundred three million, nine hundred three thousand, nine hundred fifty-six".