3905634 has 16 divisors (see below), whose sum is σ = 7872480. Its totient is φ = 1291680.

The previous prime is 3905599. The next prime is 3905641. The reversal of 3905634 is 4365093.

It is a happy number.

3905634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1699 + ... + 3270.

It is an arithmetic number, because the mean of its divisors is an integer number (492030).

Almost surely, 2^3905634 is an apocalyptic number.

3905634 is an abundant number, since it is smaller than the sum of its proper divisors (3966846).

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

3905634 is a wasteful number, since it uses less digits than its factorization.

3905634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5105.

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

The square root of 3905634 is about 1976.2676944179. The cubic root of 3905634 is about 157.4818522804.

The spelling of 3905634 in words is "three million, nine hundred five thousand, six hundred thirty-four".