11279613 has 4 divisors (see below), whose sum is σ = 15039488. Its totient is φ = 7519740.

The previous prime is 11279603. The next prime is 11279623. The reversal of 11279613 is 31697211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11279603) and next prime (11279623).

It is not a de Polignac number, because 11279613 - 2⁹ = 11279101 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 (11279603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1879933 + ... + 1879938.

It is an arithmetic number, because the mean of its divisors is an integer number (3759872).

Almost surely, 2^11279613 is an apocalyptic number.

It is an amenable number.

11279613 is a deficient number, since it is larger than the sum of its proper divisors (3759875).

11279613 is an equidigital number, since it uses as much as digits as its factorization.

11279613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759874.

The product of its digits is 2268, while the sum is 30.

The square root of 11279613 is about 3358.5135104686. The cubic root of 11279613 is about 224.2666692804.

The spelling of 11279613 in words is "eleven million, two hundred seventy-nine thousand, six hundred thirteen".