11573973 has 12 divisors (see below), whose sum is σ = 16755648. Its totient is φ = 7698600.

The previous prime is 11573963. The next prime is 11573977. The reversal of 11573973 is 37937511.

11573973 is a `hidden beast` number, since 11 + 573 + 9 + 73 = 666.

11573973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11573973 - 2⁵ = 11573941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11573977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3748 + ... + 6098.

It is an arithmetic number, because the mean of its divisors is an integer number (1396304).

Almost surely, 2^11573973 is an apocalyptic number.

It is an amenable number.

11573973 is a deficient number, since it is larger than the sum of its proper divisors (5181675).

11573973 is a wasteful number, since it uses less digits than its factorization.

11573973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904 (or 2901 counting only the distinct ones).

The product of its digits is 19845, while the sum is 36.

The square root of 11573973 is about 3402.0542323720. The cubic root of 11573973 is about 226.2008095903.

It can be divided in two parts, 115 and 73973, that added together give a cube (74088 = 42³).

The spelling of 11573973 in words is "eleven million, five hundred seventy-three thousand, nine hundred seventy-three".