3521648 has 20 divisors (see below), whose sum is σ = 7348488. Its totient is φ = 1625280.

The previous prime is 3521633. The next prime is 3521653. The reversal of 3521648 is 8461253.

It is a self number, because there is not a number n which added to its sum of digits gives 3521648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8258 + ... + 8673.

Almost surely, 2^3521648 is an apocalyptic number.

It is an amenable number.

3521648 is an abundant number, since it is smaller than the sum of its proper divisors (3826840).

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

3521648 is a wasteful number, since it uses less digits than its factorization.

3521648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16952 (or 16946 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 3521648 is about 1876.6054460115. The cubic root of 3521648 is about 152.1418343692.

The spelling of 3521648 in words is "three million, five hundred twenty-one thousand, six hundred forty-eight".