11719247 has 4 divisors (see below), whose sum is σ = 11752800. Its totient is φ = 11685696.

The previous prime is 11719243. The next prime is 11719289. The reversal of 11719247 is 74291711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74291711 = 13 ⋅5714747.

It is a cyclic number.

It is not a de Polignac number, because 11719247 - 2² = 11719243 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 (11719243) 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 3 ways as a sum of consecutive naturals, for example, 16247 + ... + 16952.

It is an arithmetic number, because the mean of its divisors is an integer number (2938200).

Almost surely, 2^11719247 is an apocalyptic number.

11719247 is a deficient number, since it is larger than the sum of its proper divisors (33553).

11719247 is an equidigital number, since it uses as much as digits as its factorization.

11719247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33552.

The product of its digits is 3528, while the sum is 32.

The square root of 11719247 is about 3423.3385751339. The cubic root of 11719247 is about 227.1432851126.

The spelling of 11719247 in words is "eleven million, seven hundred nineteen thousand, two hundred forty-seven".