3904705 has 16 divisors (see below), whose sum is σ = 5541120. Its totient is φ = 2584512.

The previous prime is 3904699. The next prime is 3904727. The reversal of 3904705 is 5074093.

3904705 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 3904705 - 2⁵ = 3904673 is a prime.

It is a super-2 number, since 2×3904705² = 30493442274050, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 909 + ... + 2938.

It is an arithmetic number, because the mean of its divisors is an integer number (346320).

Almost surely, 2^3904705 is an apocalyptic number.

3904705 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3904705 is a deficient number, since it is larger than the sum of its proper divisors (1636415).

3904705 is a wasteful number, since it uses less digits than its factorization.

3904705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 3904705 is about 1976.0326414308. The cubic root of 3904705 is about 157.4693649999.

Adding to 3904705 its reverse (5074093), we get a palindrome (8978798).

The spelling of 3904705 in words is "three million, nine hundred four thousand, seven hundred five".