3506643 has 12 divisors (see below), whose sum is σ = 5788848. Its totient is φ = 2003760.

The previous prime is 3506567. The next prime is 3506663. The reversal of 3506643 is 3466053.

3506643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3506643 - 2⁸ = 3506387 is a prime.

3506643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3506663) 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 11 ways as a sum of consecutive naturals, for example, 27768 + ... + 27893.

It is an arithmetic number, because the mean of its divisors is an integer number (482404).

Almost surely, 2^3506643 is an apocalyptic number.

3506643 is a deficient number, since it is larger than the sum of its proper divisors (2282205).

3506643 is a wasteful number, since it uses less digits than its factorization.

3506643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55674 (or 55671 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 3506643 is about 1872.6032681804. The cubic root of 3506643 is about 151.9254453166.

The spelling of 3506643 in words is "three million, five hundred six thousand, six hundred forty-three".