11618443 has 4 divisors (see below), whose sum is σ = 12229960. Its totient is φ = 11006928.

The previous prime is 11618441. The next prime is 11618449. The reversal of 11618443 is 34481611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34481611 = 113 ⋅305147.

It is not a de Polignac number, because 11618443 - 2¹ = 11618441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11618441) 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, 305730 + ... + 305767.

It is an arithmetic number, because the mean of its divisors is an integer number (3057490).

Almost surely, 2^11618443 is an apocalyptic number.

11618443 is a deficient number, since it is larger than the sum of its proper divisors (611517).

11618443 is an equidigital number, since it uses as much as digits as its factorization.

11618443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611516.

The product of its digits is 2304, while the sum is 28.

The square root of 11618443 is about 3408.5837234840. The cubic root of 11618443 is about 226.4901453901.

It can be divided in two parts, 1161 and 8443, that added together give a square (9604 = 98²).

The spelling of 11618443 in words is "eleven million, six hundred eighteen thousand, four hundred forty-three".