3664693 has 2 divisors, whose sum is σ = 3664694. Its totient is φ = 3664692.

The previous prime is 3664691. The next prime is 3664709. The reversal of 3664693 is 3964663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3617604 + 47089 = 1902^2 + 217^2 .

It is an emirp because it is prime and its reverse (3964663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3664693 - 2¹ = 3664691 is a prime.

Together with 3664691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3664691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832346 + 1832347.

It is an arithmetic number, because the mean of its divisors is an integer number (1832347).

Almost surely, 2^3664693 is an apocalyptic number.

It is an amenable number.

3664693 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664693 is an equidigital number, since it uses as much as digits as its factorization.

3664693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 37.

The square root of 3664693 is about 1914.3387892429. The cubic root of 3664693 is about 154.1744944000.

The spelling of 3664693 in words is "three million, six hundred sixty-four thousand, six hundred ninety-three".