3911693 has 2 divisors, whose sum is σ = 3911694. Its totient is φ = 3911692.

The previous prime is 3911689. The next prime is 3911711. The reversal of 3911693 is 3961193.

3911693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2502724 + 1408969 = 1582^2 + 1187^2 .

It is an emirp because it is prime and its reverse (3961193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3911693 - 2² = 3911689 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3911623) 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 as a sum of consecutive naturals, namely, 1955846 + 1955847.

It is an arithmetic number, because the mean of its divisors is an integer number (1955847).

Almost surely, 2^3911693 is an apocalyptic number.

It is an amenable number.

3911693 is a deficient number, since it is larger than the sum of its proper divisors (1).

3911693 is an equidigital number, since it uses as much as digits as its factorization.

3911693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 32.

The square root of 3911693 is about 1977.8000404490. The cubic root of 3911693 is about 157.5632466238.

The spelling of 3911693 in words is "three million, nine hundred eleven thousand, six hundred ninety-three".