4004000447 has 2 divisors, whose sum is σ = 4004000448. Its totient is φ = 4004000446.

The previous prime is 4004000437. The next prime is 4004000521. The reversal of 4004000447 is 7440004004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4004000447 - 2⁴ = 4004000431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4004000437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2002000223 + 2002000224.

It is an arithmetic number, because the mean of its divisors is an integer number (2002000224).

Almost surely, 2^4004000447 is an apocalyptic number.

4004000447 is a deficient number, since it is larger than the sum of its proper divisors (1).

4004000447 is an equidigital number, since it uses as much as digits as its factorization.

4004000447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 4004000447 is about 63277.1716103051. The cubic root of 4004000447 is about 1587.9300684635.

The spelling of 4004000447 in words is "four billion, four million, four hundred forty-seven", and thus it is an aban number.