3906345 has 16 divisors (see below), whose sum is σ = 6618240. Its totient is φ = 1960704.

The previous prime is 3906323. The next prime is 3906361. The reversal of 3906345 is 5436093.

It is a happy number.

It is not a de Polignac number, because 3906345 - 2⁹ = 3905833 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7405 + ... + 7914.

It is an arithmetic number, because the mean of its divisors is an integer number (413640).

Almost surely, 2^3906345 is an apocalyptic number.

It is an amenable number.

3906345 is a deficient number, since it is larger than the sum of its proper divisors (2711895).

3906345 is a wasteful number, since it uses less digits than its factorization.

3906345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15344.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3906345 is about 1976.4475707693. The cubic root of 3906345 is about 157.4914079465.

The spelling of 3906345 in words is "three million, nine hundred six thousand, three hundred forty-five".