3664679 has 2 divisors, whose sum is σ = 3664680. Its totient is φ = 3664678.

The previous prime is 3664657. The next prime is 3664681. The reversal of 3664679 is 9764663.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9764663) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3664679 is a prime.

It is a Sophie Germain prime.

Together with 3664681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3664649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832339 + 1832340.

It is an arithmetic number, because the mean of its divisors is an integer number (1832340).

Almost surely, 2^3664679 is an apocalyptic number.

3664679 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664679 is an equidigital number, since it uses as much as digits as its factorization.

3664679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 41.

The square root of 3664679 is about 1914.3351326244. The cubic root of 3664679 is about 154.1742980720.

The spelling of 3664679 in words is "three million, six hundred sixty-four thousand, six hundred seventy-nine".