11845871 has 4 divisors (see below), whose sum is σ = 12069432. Its totient is φ = 11622312.

The previous prime is 11845861. The next prime is 11845877. The reversal of 11845871 is 17854811.

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 11845871 - 2¹⁴ = 11829487 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 (11845877) 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, 111701 + ... + 111806.

It is an arithmetic number, because the mean of its divisors is an integer number (3017358).

Almost surely, 2^11845871 is an apocalyptic number.

11845871 is a deficient number, since it is larger than the sum of its proper divisors (223561).

11845871 is an equidigital number, since it uses as much as digits as its factorization.

11845871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223560.

The product of its digits is 8960, while the sum is 35.

The square root of 11845871 is about 3441.7831134457. The cubic root of 11845871 is about 227.9584347642.

The spelling of 11845871 in words is "eleven million, eight hundred forty-five thousand, eight hundred seventy-one".