11713971 has 4 divisors (see below), whose sum is σ = 15618632. Its totient is φ = 7809312.

The previous prime is 11713943. The next prime is 11713981. The reversal of 11713971 is 17931711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11713971 - 2⁶ = 11713907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11713981) 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, 1952326 + ... + 1952331.

It is an arithmetic number, because the mean of its divisors is an integer number (3904658).

Almost surely, 2^11713971 is an apocalyptic number.

11713971 is a deficient number, since it is larger than the sum of its proper divisors (3904661).

11713971 is an equidigital number, since it uses as much as digits as its factorization.

11713971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904660.

The product of its digits is 1323, while the sum is 30.

The square root of 11713971 is about 3422.5678956012. The cubic root of 11713971 is about 227.1091933927.

The spelling of 11713971 in words is "eleven million, seven hundred thirteen thousand, nine hundred seventy-one".