3573 has 6 divisors (see below), whose sum is σ = 5174. Its totient is φ = 2376.

The previous prime is 3571. The next prime is 3581. The reversal of 3573 is 3753.

3573 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 3249 + 324 = 57^2 + 18^2 .

It is not a de Polignac number, because 3573 - 2¹ = 3571 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 (3571) 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, 190 + ... + 207.

2³⁵⁷³ is an apocalyptic number.

It is an amenable number.

3573 is a deficient number, since it is larger than the sum of its proper divisors (1601).

3573 is a wasteful number, since it uses less digits than its factorization.

3573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 400 counting only the distinct ones).

The product of its digits is 315, while the sum is 18.

The square root of 3573 is about 59.7745765355. The cubic root of 3573 is about 15.2877769864.

It can be divided in two parts, 3 and 573, that added together give a square (576 = 24²).

The spelling of 3573 in words is "three thousand, five hundred seventy-three".