11711279 has 4 divisors (see below), whose sum is σ = 11761776. Its totient is φ = 11660784.

The previous prime is 11711263. The next prime is 11711303. The reversal of 11711279 is 97211711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97211711 = 1459 ⋅66629.

It is a cyclic number.

It is not a de Polignac number, because 11711279 - 2⁴ = 11711263 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 (11711779) 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, 24899 + ... + 25364.

It is an arithmetic number, because the mean of its divisors is an integer number (2940444).

Almost surely, 2^11711279 is an apocalyptic number.

11711279 is a deficient number, since it is larger than the sum of its proper divisors (50497).

11711279 is an equidigital number, since it uses as much as digits as its factorization.

11711279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50496.

The product of its digits is 882, while the sum is 29.

The square root of 11711279 is about 3422.1746010395. The cubic root of 11711279 is about 227.0917946590.

The spelling of 11711279 in words is "eleven million, seven hundred eleven thousand, two hundred seventy-nine".