3531616 has 48 divisors (see below), whose sum is σ = 7741440. Its totient is φ = 1572480.

The previous prime is 3531601. The next prime is 3531623. The reversal of 3531616 is 6161353.

3531616 = T₄₀ + T₄₁ + ... + T₂₇₆.

3531616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27745 + ... + 27871.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

Almost surely, 2^3531616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3531616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3870720).

3531616 is an abundant number, since it is smaller than the sum of its proper divisors (4209824).

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

3531616 is a wasteful number, since it uses less digits than its factorization.

3531616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 219 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 3531616 is about 1879.2594286048. The cubic root of 3531616 is about 152.2852446125.

Adding to 3531616 its reverse (6161353), we get a palindrome (9692969).

The spelling of 3531616 in words is "three million, five hundred thirty-one thousand, six hundred sixteen".