3905694 has 24 divisors (see below), whose sum is σ = 9113832. Its totient is φ = 1201680.

The previous prime is 3905687. The next prime is 3905711. The reversal of 3905694 is 4965093.

3905694 is a `hidden beast` number, since 3 + 90 + 569 + 4 = 666.

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 11 ways as a sum of consecutive naturals, for example, 8112 + ... + 8579.

It is an arithmetic number, because the mean of its divisors is an integer number (379743).

Almost surely, 2^3905694 is an apocalyptic number.

3905694 is an abundant number, since it is smaller than the sum of its proper divisors (5208138).

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

3905694 is a wasteful number, since it uses less digits than its factorization.

3905694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16712 (or 16709 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 3905694 is about 1976.2828744894. The cubic root of 3905694 is about 157.4826587105.

It can be divided in two parts, 390 and 5694, that added together give a square (6084 = 78²).

The spelling of 3905694 in words is "three million, nine hundred five thousand, six hundred ninety-four".