11949843 has 8 divisors (see below), whose sum is σ = 15951808. Its totient is φ = 7957224.

The previous prime is 11949809. The next prime is 11949851. The reversal of 11949843 is 34894911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11949843 - 2⁹ = 11949331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11949893) 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 7 ways as a sum of consecutive naturals, for example, 1596 + ... + 5142.

It is an arithmetic number, because the mean of its divisors is an integer number (1993976).

Almost surely, 2^11949843 is an apocalyptic number.

11949843 is a deficient number, since it is larger than the sum of its proper divisors (4001965).

11949843 is a wasteful number, since it uses less digits than its factorization.

11949843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673.

The product of its digits is 31104, while the sum is 39.

The square root of 11949843 is about 3456.8544950576. The cubic root of 11949843 is about 228.6234284407.

The spelling of 11949843 in words is "eleven million, nine hundred forty-nine thousand, eight hundred forty-three".