11279413 has 4 divisors (see below), whose sum is σ = 11584300. Its totient is φ = 10974528.

The previous prime is 11279393. The next prime is 11279417. The reversal of 11279413 is 31497211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31497211 = 53 ⋅594287.

It can be written as a sum of positive squares in 2 ways, for example, as 9972964 + 1306449 = 3158^2 + 1143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11279413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11279417) 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 3 ways as a sum of consecutive naturals, for example, 152388 + ... + 152461.

It is an arithmetic number, because the mean of its divisors is an integer number (2896075).

Almost surely, 2^11279413 is an apocalyptic number.

It is an amenable number.

11279413 is a deficient number, since it is larger than the sum of its proper divisors (304887).

11279413 is an equidigital number, since it uses as much as digits as its factorization.

11279413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304886.

The product of its digits is 1512, while the sum is 28.

The square root of 11279413 is about 3358.4837352591. The cubic root of 11279413 is about 224.2653437739.

The spelling of 11279413 in words is "eleven million, two hundred seventy-nine thousand, four hundred thirteen".