11847849 has 32 divisors (see below), whose sum is σ = 18278400. Its totient is φ = 6765120.

The previous prime is 11847799. The next prime is 11847853. The reversal of 11847849 is 94874811.

It is not a de Polignac number, because 11847849 - 2⁷ = 11847721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11847849.

It is not an unprimeable number, because it can be changed into a prime (11847049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43584 + ... + 43854.

It is an arithmetic number, because the mean of its divisors is an integer number (571200).

Almost surely, 2^11847849 is an apocalyptic number.

11847849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11847849 is a deficient number, since it is larger than the sum of its proper divisors (6430551).

11847849 is a wasteful number, since it uses less digits than its factorization.

11847849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its digits is 64512, while the sum is 42.

The square root of 11847849 is about 3442.0704525038. The cubic root of 11847849 is about 227.9711220735.

The spelling of 11847849 in words is "eleven million, eight hundred forty-seven thousand, eight hundred forty-nine".