103906 has 8 divisors (see below), whose sum is σ = 170064. Its totient is φ = 47220.

The previous prime is 103903. The next prime is 103913. The reversal of 103906 is 609301.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (103903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340 + ... + 2383.

It is an arithmetic number, because the mean of its divisors is an integer number (21258).

2¹⁰³⁹⁰⁶ is an apocalyptic number.

103906 is a deficient number, since it is larger than the sum of its proper divisors (66158).

103906 is a wasteful number, since it uses less digits than its factorization.

103906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 103906 is about 322.3445361721. The cubic root of 103906 is about 47.0125211849.

It can be divided in two parts, 10 and 3906, that multiplied together give a triangular number (39060 = T₂₇₉).

The spelling of 103906 in words is "one hundred three thousand, nine hundred six".