3664447 has 2 divisors, whose sum is σ = 3664448. Its totient is φ = 3664446.

The previous prime is 3664439. The next prime is 3664483. The reversal of 3664447 is 7444663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3664447 - 2³ = 3664439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3664487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832223 + 1832224.

It is an arithmetic number, because the mean of its divisors is an integer number (1832224).

Almost surely, 2^3664447 is an apocalyptic number.

3664447 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664447 is an equidigital number, since it uses as much as digits as its factorization.

3664447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 34.

The square root of 3664447 is about 1914.2745362147. The cubic root of 3664447 is about 154.1710445636.

The spelling of 3664447 in words is "three million, six hundred sixty-four thousand, four hundred forty-seven".