11471871 has 8 divisors (see below), whose sum is σ = 15960960. Its totient is φ = 7315352.

The previous prime is 11471861. The next prime is 11471893. The reversal of 11471871 is 17817411.

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 11471871 - 2⁷ = 11471743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11471851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83061 + ... + 83198.

It is an arithmetic number, because the mean of its divisors is an integer number (1995120).

Almost surely, 2^11471871 is an apocalyptic number.

11471871 is a deficient number, since it is larger than the sum of its proper divisors (4489089).

11471871 is a wasteful number, since it uses less digits than its factorization.

11471871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166285.

The product of its digits is 1568, while the sum is 30.

The square root of 11471871 is about 3387.0150575396. The cubic root of 11471871 is about 225.5336862146.

The spelling of 11471871 in words is "eleven million, four hundred seventy-one thousand, eight hundred seventy-one".