11573943 has 16 divisors (see below), whose sum is σ = 16106496. Its totient is φ = 7384320.

The previous prime is 11573941. The next prime is 11573951. The reversal of 11573943 is 34937511.

It is not a de Polignac number, because 11573943 - 2¹ = 11573941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11573941) 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 15 ways as a sum of consecutive naturals, for example, 8380 + ... + 9662.

It is an arithmetic number, because the mean of its divisors is an integer number (1006656).

Almost surely, 2^11573943 is an apocalyptic number.

11573943 is a deficient number, since it is larger than the sum of its proper divisors (4532553).

11573943 is a wasteful number, since it uses less digits than its factorization.

11573943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414.

The product of its digits is 11340, while the sum is 33.

The square root of 11573943 is about 3402.0498232683. The cubic root of 11573943 is about 226.2006141509.

The spelling of 11573943 in words is "eleven million, five hundred seventy-three thousand, nine hundred forty-three".