3552021 has 12 divisors (see below), whose sum is σ = 5597280. Its totient is φ = 2152680.

The previous prime is 3552013. The next prime is 3552023. The reversal of 3552021 is 1202553.

It is a happy number.

3552021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3552021 - 2³ = 3552013 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3551985 and 3552003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3552023) 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 11 ways as a sum of consecutive naturals, for example, 17841 + ... + 18038.

It is an arithmetic number, because the mean of its divisors is an integer number (466440).

Almost surely, 2^3552021 is an apocalyptic number.

It is an amenable number.

3552021 is a deficient number, since it is larger than the sum of its proper divisors (2045259).

3552021 is a wasteful number, since it uses less digits than its factorization.

3552021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35896 (or 35893 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 3552021 is about 1884.6806095463. The cubic root of 3552021 is about 152.5779732045.

Adding to 3552021 its reverse (1202553), we get a palindrome (4754574).

The spelling of 3552021 in words is "three million, five hundred fifty-two thousand, twenty-one".