11964871 has 4 divisors (see below), whose sum is σ = 11981200. Its totient is φ = 11948544.

The previous prime is 11964863. The next prime is 11964877. The reversal of 11964871 is 17846911.

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

It is a cyclic number.

It is not a de Polignac number, because 11964871 - 2³ = 11964863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11964871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11964877) 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, 7011 + ... + 8548.

It is an arithmetic number, because the mean of its divisors is an integer number (2995300).

Almost surely, 2^11964871 is an apocalyptic number.

11964871 is a deficient number, since it is larger than the sum of its proper divisors (16329).

11964871 is an equidigital number, since it uses as much as digits as its factorization.

11964871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16328.

The product of its digits is 12096, while the sum is 37.

The square root of 11964871 is about 3459.0274644761. The cubic root of 11964871 is about 228.7192264534.

The spelling of 11964871 in words is "eleven million, nine hundred sixty-four thousand, eight hundred seventy-one".