11387403 has 12 divisors (see below), whose sum is σ = 17314440. Its totient is φ = 7191936.

The previous prime is 11387359. The next prime is 11387423. The reversal of 11387403 is 30478311.

11387403 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 11387403 - 2²⁰ = 10338827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11387423) 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 11 ways as a sum of consecutive naturals, for example, 33126 + ... + 33467.

It is an arithmetic number, because the mean of its divisors is an integer number (1442870).

Almost surely, 2^11387403 is an apocalyptic number.

11387403 is a deficient number, since it is larger than the sum of its proper divisors (5927037).

11387403 is a wasteful number, since it uses less digits than its factorization.

11387403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66618 (or 66615 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 11387403 is about 3374.5226329068. The cubic root of 11387403 is about 224.9787831846.

The spelling of 11387403 in words is "eleven million, three hundred eighty-seven thousand, four hundred three".