3521956 has 24 divisors (see below), whose sum is σ = 6463800. Its totient is φ = 1677312.

The previous prime is 3521953. The next prime is 3521977. The reversal of 3521956 is 6591253.

It can be written as a sum of positive squares in 4 ways, for example, as 1779556 + 1742400 = 1334^2 + 1320^2 .

It is not an unprimeable number, because it can be changed into a prime (3521951) 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 7 ways as a sum of consecutive naturals, for example, 7620 + ... + 8068.

It is an arithmetic number, because the mean of its divisors is an integer number (269325).

Almost surely, 2^3521956 is an apocalyptic number.

It is an amenable number.

3521956 is a deficient number, since it is larger than the sum of its proper divisors (2941844).

3521956 is a wasteful number, since it uses less digits than its factorization.

3521956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its digits is 8100, while the sum is 31.

The square root of 3521956 is about 1876.6875072851. The cubic root of 3521956 is about 152.1462696335.

The spelling of 3521956 in words is "three million, five hundred twenty-one thousand, nine hundred fifty-six".