8611943 has 4 divisors (see below), whose sum is σ = 8621328. Its totient is φ = 8602560.

The previous prime is 8611903. The next prime is 8611961. The reversal of 8611943 is 3491168.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8611943 - 2⁶ = 8611879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8611903) 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 3 ways as a sum of consecutive naturals, for example, 3146 + ... + 5207.

It is an arithmetic number, because the mean of its divisors is an integer number (2155332).

Almost surely, 2^8611943 is an apocalyptic number.

8611943 is a deficient number, since it is larger than the sum of its proper divisors (9385).

8611943 is a wasteful number, since it uses less digits than its factorization.

8611943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9384.

The product of its digits is 5184, while the sum is 32.

The square root of 8611943 is about 2934.6112178617. The cubic root of 8611943 is about 204.9747579470.

The spelling of 8611943 in words is "eight million, six hundred eleven thousand, nine hundred forty-three".