3559645 has 4 divisors (see below), whose sum is σ = 4271580. Its totient is φ = 2847712.

The previous prime is 3559627. The next prime is 3559649. The reversal of 3559645 is 5469553.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 964324 + 2595321 = 982^2 + 1611^2 .

It is a cyclic number.

It is not a de Polignac number, because 3559645 - 2¹⁷ = 3428573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3559649) 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, 355960 + ... + 355969.

It is an arithmetic number, because the mean of its divisors is an integer number (1067895).

Almost surely, 2^3559645 is an apocalyptic number.

It is an amenable number.

3559645 is a deficient number, since it is larger than the sum of its proper divisors (711935).

3559645 is an equidigital number, since it uses as much as digits as its factorization.

3559645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711934.

The product of its digits is 81000, while the sum is 37.

The square root of 3559645 is about 1886.7021492541. The cubic root of 3559645 is about 152.6870588203.

It can be divided in two parts, 355 and 9645, that added together give a 4-th power (10000 = 10⁴).

The spelling of 3559645 in words is "three million, five hundred fifty-nine thousand, six hundred forty-five".