3530565 has 24 divisors (see below), whose sum is σ = 6216288. Its totient is φ = 1853280.

The previous prime is 3530563. The next prime is 3530587. The reversal of 3530565 is 5650353.

It is a happy number.

It is not a de Polignac number, because 3530565 - 2¹ = 3530563 is a prime.

3530565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3530563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2430 + ... + 3600.

It is an arithmetic number, because the mean of its divisors is an integer number (259012).

Almost surely, 2^3530565 is an apocalyptic number.

It is an amenable number.

3530565 is a deficient number, since it is larger than the sum of its proper divisors (2685723).

3530565 is a wasteful number, since it uses less digits than its factorization.

3530565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 3530565 is about 1878.9797763680. The cubic root of 3530565 is about 152.2701365457.

It can be divided in two parts, 3530 and 565, that added together give a triangular number (4095 = T₉₀).

The spelling of 3530565 in words is "three million, five hundred thirty thousand, five hundred sixty-five".