3708691 has 4 divisors (see below), whose sum is σ = 4238512. Its totient is φ = 3178872.

The previous prime is 3708673. The next prime is 3708697. The reversal of 3708691 is 1968073.

3708691 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, and also an emirpimes, since its reverse is a distinct semiprime: 1968073 = 17 ⋅115769.

It is a cyclic number.

It is not a de Polignac number, because 3708691 - 2¹⁵ = 3675923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3708697) 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, 264900 + ... + 264913.

It is an arithmetic number, because the mean of its divisors is an integer number (1059628).

Almost surely, 2^3708691 is an apocalyptic number.

3708691 is a deficient number, since it is larger than the sum of its proper divisors (529821).

3708691 is an equidigital number, since it uses as much as digits as its factorization.

3708691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529820.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3708691 is about 1925.7961989785. The cubic root of 3708691 is about 154.7890435751.

The spelling of 3708691 in words is "three million, seven hundred eight thousand, six hundred ninety-one".