3521579 has 4 divisors (see below), whose sum is σ = 3529680. Its totient is φ = 3513480.

The previous prime is 3521561. The next prime is 3521627. The reversal of 3521579 is 9751253.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3521579 - 2¹² = 3517483 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3521519) 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 3 ways as a sum of consecutive naturals, for example, 3359 + ... + 4280.

It is an arithmetic number, because the mean of its divisors is an integer number (882420).

Almost surely, 2^3521579 is an apocalyptic number.

3521579 is a deficient number, since it is larger than the sum of its proper divisors (8101).

3521579 is an equidigital number, since it uses as much as digits as its factorization.

3521579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8100.

The product of its digits is 9450, while the sum is 32.

The square root of 3521579 is about 1876.5870616627. The cubic root of 3521579 is about 152.1408407194.

The spelling of 3521579 in words is "three million, five hundred twenty-one thousand, five hundred seventy-nine".