11279439 has 16 divisors (see below), whose sum is σ = 16783200. Its totient is φ = 7486848.

The previous prime is 11279431. The next prime is 11279441. The reversal of 11279439 is 93497211.

11279439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11279439 - 2³ = 11279431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11279431) 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, 6487 + ... + 8039.

It is an arithmetic number, because the mean of its divisors is an integer number (1048950).

Almost surely, 2^11279439 is an apocalyptic number.

11279439 is a deficient number, since it is larger than the sum of its proper divisors (5503761).

11279439 is a wasteful number, since it uses less digits than its factorization.

11279439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1825 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 11279439 is about 3358.4876060513. The cubic root of 11279439 is about 224.2655160906.

The spelling of 11279439 in words is "eleven million, two hundred seventy-nine thousand, four hundred thirty-nine".