3521804 has 48 divisors (see below), whose sum is σ = 7451136. Its totient is φ = 1435200.

The previous prime is 3521803. The next prime is 3521831. The reversal of 3521804 is 4081253.

It is a self number, because there is not a number n which added to its sum of digits gives 3521804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26819 + ... + 26949.

It is an arithmetic number, because the mean of its divisors is an integer number (155232).

Almost surely, 2^3521804 is an apocalyptic number.

It is an amenable number.

3521804 is an abundant number, since it is smaller than the sum of its proper divisors (3929332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3521804 is a wasteful number, since it uses less digits than its factorization.

3521804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 3521804 is about 1876.6470099622. The cubic root of 3521804 is about 152.1440808341.

The spelling of 3521804 in words is "three million, five hundred twenty-one thousand, eight hundred four".