11471439 has 24 divisors (see below), whose sum is σ = 18053040. Its totient is φ = 6459264.

The previous prime is 11471423. The next prime is 11471483. The reversal of 11471439 is 93417411.

11471439 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 11471439 - 2⁴ = 11471423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11471489) 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 23 ways as a sum of consecutive naturals, for example, 10197 + ... + 11265.

It is an arithmetic number, because the mean of its divisors is an integer number (752210).

Almost surely, 2^11471439 is an apocalyptic number.

11471439 is a deficient number, since it is larger than the sum of its proper divisors (6581601).

11471439 is a wasteful number, since it uses less digits than its factorization.

11471439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1152 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 11471439 is about 3386.9512839721. The cubic root of 11471439 is about 225.5308551804.

The spelling of 11471439 in words is "eleven million, four hundred seventy-one thousand, four hundred thirty-nine".