11913903 has 24 divisors (see below), whose sum is σ = 17886960. Its totient is φ = 7635840.

The previous prime is 11913899. The next prime is 11913953. The reversal of 11913903 is 30931911.

11913903 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11913903 - 2² = 11913899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30433 + ... + 30821.

It is an arithmetic number, because the mean of its divisors is an integer number (745290).

Almost surely, 2^11913903 is an apocalyptic number.

11913903 is a deficient number, since it is larger than the sum of its proper divisors (5973057).

11913903 is a wasteful number, since it uses less digits than its factorization.

11913903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 11913903 is about 3451.6522130713. The cubic root of 11913903 is about 228.3939978875.

The spelling of 11913903 in words is "eleven million, nine hundred thirteen thousand, nine hundred three".