11903906 has 32 divisors (see below), whose sum is σ = 21212928. Its totient is φ = 4904640.

The previous prime is 11903887. The next prime is 11903909. The reversal of 11903906 is 60930911.

11903906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11903909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45131 + ... + 45393.

It is an arithmetic number, because the mean of its divisors is an integer number (662904).

Almost surely, 2^11903906 is an apocalyptic number.

11903906 is a deficient number, since it is larger than the sum of its proper divisors (9309022).

11903906 is a wasteful number, since it uses less digits than its factorization.

11903906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 11903906 is about 3450.2037620987. The cubic root of 11903906 is about 228.3300979289.

The spelling of 11903906 in words is "eleven million, nine hundred three thousand, nine hundred six".