3562021 has 4 divisors (see below), whose sum is σ = 3589344. Its totient is φ = 3534700.

The previous prime is 3562019. The next prime is 3562043. The reversal of 3562021 is 1202653.

It is a happy number.

3562021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 771-st star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1202653 = 41 ⋅29333.

It is a cyclic number.

It is not a de Polignac number, because 3562021 - 2¹ = 3562019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3562021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3562051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13465 + ... + 13726.

It is an arithmetic number, because the mean of its divisors is an integer number (897336).

Almost surely, 2^3562021 is an apocalyptic number.

It is an amenable number.

3562021 is a deficient number, since it is larger than the sum of its proper divisors (27323).

3562021 is a wasteful number, since it uses less digits than its factorization.

3562021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27322.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 3562021 is about 1887.3317143523. The cubic root of 3562021 is about 152.7210232339.

Adding to 3562021 its reverse (1202653), we get a palindrome (4764674).

The spelling of 3562021 in words is "three million, five hundred sixty-two thousand, twenty-one".