11709871 has 8 divisors (see below), whose sum is σ = 12660080. Its totient is φ = 10793088.

The previous prime is 11709853. The next prime is 11709883. The reversal of 11709871 is 17890711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11709871 - 2¹¹ = 11707823 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11709571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7626 + ... + 9031.

It is an arithmetic number, because the mean of its divisors is an integer number (1582510).

Almost surely, 2^11709871 is an apocalyptic number.

11709871 is a deficient number, since it is larger than the sum of its proper divisors (950209).

11709871 is a wasteful number, since it uses less digits than its factorization.

11709871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16713.

The product of its (nonzero) digits is 3528, while the sum is 34.

The square root of 11709871 is about 3421.9688777077. The cubic root of 11709871 is about 227.0826935163.

The spelling of 11709871 in words is "eleven million, seven hundred nine thousand, eight hundred seventy-one".