3705845 has 32 divisors (see below), whose sum is σ = 5370624. Its totient is φ = 2419200.

The previous prime is 3705841. The next prime is 3705851. The reversal of 3705845 is 5485073.

It is a happy number.

It is not a de Polignac number, because 3705845 - 2² = 3705841 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3705841) 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 31 ways as a sum of consecutive naturals, for example, 50729 + ... + 50801.

It is an arithmetic number, because the mean of its divisors is an integer number (167832).

Almost surely, 2^3705845 is an apocalyptic number.

It is an amenable number.

3705845 is a deficient number, since it is larger than the sum of its proper divisors (1664779).

3705845 is a wasteful number, since it uses less digits than its factorization.

3705845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 3705845 is about 1925.0571420090. The cubic root of 3705845 is about 154.7494390936.

The spelling of 3705845 in words is "three million, seven hundred five thousand, eight hundred forty-five".