3521524 has 12 divisors (see below), whose sum is σ = 6237504. Its totient is φ = 1739384.

The previous prime is 3521519. The next prime is 3521527. The reversal of 3521524 is 4251253.

It is a super-2 number, since 2×3521524² = 24802262565152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3521495 and 3521504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521527) 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, 4972 + ... + 5635.

It is an arithmetic number, because the mean of its divisors is an integer number (519792).

Almost surely, 2^3521524 is an apocalyptic number.

It is an amenable number.

3521524 is a deficient number, since it is larger than the sum of its proper divisors (2715980).

3521524 is a wasteful number, since it uses less digits than its factorization.

3521524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10694 (or 10692 counting only the distinct ones).

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

The square root of 3521524 is about 1876.5724073427. The cubic root of 3521524 is about 152.1400486703.

Adding to 3521524 its reverse (4251253), we get a palindrome (7772777).

The spelling of 3521524 in words is "three million, five hundred twenty-one thousand, five hundred twenty-four".