11856243 has 16 divisors (see below), whose sum is σ = 18556160. Its totient is φ = 6591456.

The previous prime is 11856239. The next prime is 11856269. The reversal of 11856243 is 34265811.

It is not a de Polignac number, because 11856243 - 2² = 11856239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11856243.

It is not an unprimeable number, because it can be changed into a prime (11856223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6853 + ... + 8406.

It is an arithmetic number, because the mean of its divisors is an integer number (1159760).

Almost surely, 2^11856243 is an apocalyptic number.

11856243 is a deficient number, since it is larger than the sum of its proper divisors (6699917).

11856243 is a wasteful number, since it uses less digits than its factorization.

11856243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15306.

The product of its digits is 5760, while the sum is 30.

The square root of 11856243 is about 3443.2895608705. The cubic root of 11856243 is about 228.0249472548.

The spelling of 11856243 in words is "eleven million, eight hundred fifty-six thousand, two hundred forty-three".