11856849 has 8 divisors (see below), whose sum is σ = 16319232. Its totient is φ = 7649520.

The previous prime is 11856841. The next prime is 11856857. The reversal of 11856849 is 94865811.

It is an interprime number because it is at equal distance from previous prime (11856841) and next prime (11856857).

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

It is not a de Polignac number, because 11856849 - 2³ = 11856841 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11856849.

It is not an unprimeable number, because it can be changed into a prime (11856841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63654 + ... + 63839.

It is an arithmetic number, because the mean of its divisors is an integer number (2039904).

Almost surely, 2^11856849 is an apocalyptic number.

It is an amenable number.

11856849 is a deficient number, since it is larger than the sum of its proper divisors (4462383).

11856849 is a wasteful number, since it uses less digits than its factorization.

11856849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127527.

The product of its digits is 69120, while the sum is 42.

The square root of 11856849 is about 3443.3775569926. The cubic root of 11856849 is about 228.0288321495.

The spelling of 11856849 in words is "eleven million, eight hundred fifty-six thousand, eight hundred forty-nine".