3563021 has 8 divisors (see below), whose sum is σ = 4442304. Its totient is φ = 2776320.

The previous prime is 3563009. The next prime is 3563033. The reversal of 3563021 is 1203653.

It is an interprime number because it is at equal distance from previous prime (3563009) and next prime (3563033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3563021 - 2⁶ = 3562957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3562984 and 3563002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3563041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23060 + ... + 23213.

It is an arithmetic number, because the mean of its divisors is an integer number (555288).

Almost surely, 2^3563021 is an apocalyptic number.

It is an amenable number.

3563021 is a deficient number, since it is larger than the sum of its proper divisors (879283).

3563021 is a wasteful number, since it uses less digits than its factorization.

3563021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46291.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3563021 is about 1887.5966200436. The cubic root of 3563021 is about 152.7353135046.

Adding to 3563021 its reverse (1203653), we get a palindrome (4766674).

The spelling of 3563021 in words is "three million, five hundred sixty-three thousand, twenty-one".