11427903 has 12 divisors (see below), whose sum is σ = 16716960. Its totient is φ = 7521696.

The previous prime is 11427901. The next prime is 11427917. The reversal of 11427903 is 30972411.

It is not a de Polignac number, because 11427903 - 2¹ = 11427901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11427901) 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 11 ways as a sum of consecutive naturals, for example, 7326 + ... + 8747.

It is an arithmetic number, because the mean of its divisors is an integer number (1393080).

Almost surely, 2^11427903 is an apocalyptic number.

11427903 is a deficient number, since it is larger than the sum of its proper divisors (5289057).

11427903 is a wasteful number, since it uses less digits than its factorization.

11427903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16158 (or 16155 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 11427903 is about 3380.5181555495. The cubic root of 11427903 is about 225.2451845749.

It can be divided in two parts, 1142 and 7903, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 11427903 in words is "eleven million, four hundred twenty-seven thousand, nine hundred three".