3524521 has 24 divisors (see below), whose sum is σ = 4826304. Its totient is φ = 2530080.

The previous prime is 3524503. The next prime is 3524531. The reversal of 3524521 is 1254253.

It is not a de Polignac number, because 3524521 - 2⁷ = 3524393 is a prime.

It is an Ulam number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 3524492 and 3524501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3524531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6756 + ... + 7258.

It is an arithmetic number, because the mean of its divisors is an integer number (201096).

Almost surely, 2^3524521 is an apocalyptic number.

It is an amenable number.

3524521 is a deficient number, since it is larger than the sum of its proper divisors (1301783).

3524521 is a wasteful number, since it uses less digits than its factorization.

3524521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 534 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 3524521 is about 1877.3707678559. The cubic root of 3524521 is about 152.1831961293.

Adding to 3524521 its reverse (1254253), we get a palindrome (4778774).

The spelling of 3524521 in words is "three million, five hundred twenty-four thousand, five hundred twenty-one".