3530665 has 4 divisors (see below), whose sum is σ = 4236804. Its totient is φ = 2824528.

The previous prime is 3530647. The next prime is 3530669. The reversal of 3530665 is 5660353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5660353 = 359 ⋅15767.

It can be written as a sum of positive squares in 2 ways, for example, as 1710864 + 1819801 = 1308^2 + 1349^2 .

It is a cyclic number.

It is not a de Polignac number, because 3530665 - 2⁷ = 3530537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3530669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353062 + ... + 353071.

It is an arithmetic number, because the mean of its divisors is an integer number (1059201).

Almost surely, 2^3530665 is an apocalyptic number.

It is an amenable number.

3530665 is a deficient number, since it is larger than the sum of its proper divisors (706139).

3530665 is an equidigital number, since it uses as much as digits as its factorization.

3530665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706138.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 3530665 is about 1879.0063863649. The cubic root of 3530665 is about 152.2715741692.

The spelling of 3530665 in words is "three million, five hundred thirty thousand, six hundred sixty-five".