3664943 has 2 divisors, whose sum is σ = 3664944. Its totient is φ = 3664942.

The previous prime is 3664937. The next prime is 3664957. The reversal of 3664943 is 3494663.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3664943 - 2⁶ = 3664879 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3664963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832471 + 1832472.

It is an arithmetic number, because the mean of its divisors is an integer number (1832472).

Almost surely, 2^3664943 is an apocalyptic number.

3664943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664943 is an equidigital number, since it uses as much as digits as its factorization.

3664943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 3664943 is about 1914.4040848264. The cubic root of 3664943 is about 154.1780001732.

The spelling of 3664943 in words is "three million, six hundred sixty-four thousand, nine hundred forty-three".