3559643 has 4 divisors (see below), whose sum is σ = 3612840. Its totient is φ = 3506448.

The previous prime is 3559627. The next prime is 3559649. The reversal of 3559643 is 3469553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3469553 = 557 ⋅6229.

It is a cyclic number.

It is not a de Polignac number, because 3559643 - 2⁴ = 3559627 is a prime.

It is a super-3 number, since 3×3559643³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian 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, 26498 + ... + 26631.

It is an arithmetic number, because the mean of its divisors is an integer number (903210).

Almost surely, 2^3559643 is an apocalyptic number.

3559643 is a deficient number, since it is larger than the sum of its proper divisors (53197).

3559643 is an equidigital number, since it uses as much as digits as its factorization.

3559643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53196.

The product of its digits is 48600, while the sum is 35.

The square root of 3559643 is about 1886.7016192286. The cubic root of 3559643 is about 152.6870302244.

The spelling of 3559643 in words is "three million, five hundred fifty-nine thousand, six hundred forty-three".