3706691 has 4 divisors (see below), whose sum is σ = 3901800. Its totient is φ = 3511584.

The previous prime is 3706679. The next prime is 3706723. The reversal of 3706691 is 1966073.

3706691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3706691 - 2⁶ = 3706627 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3706621) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 97526 + ... + 97563.

It is an arithmetic number, because the mean of its divisors is an integer number (975450).

Almost surely, 2^3706691 is an apocalyptic number.

3706691 is a deficient number, since it is larger than the sum of its proper divisors (195109).

3706691 is a wasteful number, since it uses less digits than its factorization.

3706691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195108.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 3706691 is about 1925.2768632070. The cubic root of 3706691 is about 154.7612140118.

The spelling of 3706691 in words is "three million, seven hundred six thousand, six hundred ninety-one".