11847851 has 4 divisors (see below), whose sum is σ = 11863104. Its totient is φ = 11832600.

The previous prime is 11847799. The next prime is 11847853. The reversal of 11847851 is 15874811.

11847851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11847851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11847853) 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, 6395 + ... + 8036.

It is an arithmetic number, because the mean of its divisors is an integer number (2965776).

Almost surely, 2^11847851 is an apocalyptic number.

11847851 is a deficient number, since it is larger than the sum of its proper divisors (15253).

11847851 is an equidigital number, since it uses as much as digits as its factorization.

11847851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15252.

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

The square root of 11847851 is about 3442.0707430266. The cubic root of 11847851 is about 227.9711349012.

The spelling of 11847851 in words is "eleven million, eight hundred forty-seven thousand, eight hundred fifty-one".