3506812 has 12 divisors (see below), whose sum is σ = 6286896. Its totient is φ = 1710560.

The previous prime is 3506809. The next prime is 3506819. The reversal of 3506812 is 2186053.

It is a happy number.

3506812 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 not an unprimeable number, because it can be changed into a prime (3506819) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10528 + ... + 10855.

It is an arithmetic number, because the mean of its divisors is an integer number (523908).

Almost surely, 2^3506812 is an apocalyptic number.

It is an amenable number.

3506812 is a deficient number, since it is larger than the sum of its proper divisors (2780084).

3506812 is a wasteful number, since it uses less digits than its factorization.

3506812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21428 (or 21426 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3506812 is about 1872.6483919839. The cubic root of 3506812 is about 151.9278859213.

The spelling of 3506812 in words is "three million, five hundred six thousand, eight hundred twelve".