3916691 has 2 divisors, whose sum is σ = 3916692. Its totient is φ = 3916690.

The previous prime is 3916673. The next prime is 3916721. The reversal of 3916691 is 1966193.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3916691 - 2¹⁴ = 3900307 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3916621) by changing a digit.

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 as a sum of consecutive naturals, namely, 1958345 + 1958346.

It is an arithmetic number, because the mean of its divisors is an integer number (1958346).

Almost surely, 2^3916691 is an apocalyptic number.

3916691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3916691 is an equidigital number, since it uses as much as digits as its factorization.

3916691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 35.

The square root of 3916691 is about 1979.0631622058. The cubic root of 3916691 is about 157.6303246508.

The spelling of 3916691 in words is "three million, nine hundred sixteen thousand, six hundred ninety-one".