3781706 has 16 divisors (see below), whose sum is σ = 5961600. Its totient is φ = 1795728.

The previous prime is 3781691. The next prime is 3781711. The reversal of 3781706 is 6071873.

It is a happy number.

3781706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 10355 + ... + 10713.

It is an arithmetic number, because the mean of its divisors is an integer number (372600).

Almost surely, 2^3781706 is an apocalyptic number.

3781706 is a deficient number, since it is larger than the sum of its proper divisors (2179894).

3781706 is a wasteful number, since it uses less digits than its factorization.

3781706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 3781706 is about 1944.6608958890. The cubic root of 3781706 is about 155.7982544381.

The spelling of 3781706 in words is "three million, seven hundred eighty-one thousand, seven hundred six".