39573 has 6 divisors (see below), whose sum is σ = 57174. Its totient is φ = 26376.

The previous prime is 39569. The next prime is 39581. The reversal of 39573 is 37593.

39573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 33489 + 6084 = 183^2 + 78^2 .

It is not a de Polignac number, because 39573 - 2² = 39569 is a prime.

It is a Curzon number.

39573 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2190 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (9529).

2³⁹⁵⁷³ is an apocalyptic number.

It is an amenable number.

39573 is a deficient number, since it is larger than the sum of its proper divisors (17601).

39573 is a wasteful number, since it uses less digits than its factorization.

39573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403 (or 4400 counting only the distinct ones).

The product of its digits is 2835, while the sum is 27.

The square root of 39573 is about 198.9296358012. The cubic root of 39573 is about 34.0773900335.

The spelling of 39573 in words is "thirty-nine thousand, five hundred seventy-three".