3948904447 has 2 divisors, whose sum is σ = 3948904448. Its totient is φ = 3948904446.

The previous prime is 3948904417. The next prime is 3948904469. The reversal of 3948904447 is 7444098493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3948904447 - 2²⁷ = 3814686719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3948904394 and 3948904403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3948904417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974452223 + 1974452224.

It is an arithmetic number, because the mean of its divisors is an integer number (1974452224).

Almost surely, 2^3948904447 is an apocalyptic number.

3948904447 is a deficient number, since it is larger than the sum of its proper divisors (1).

3948904447 is an equidigital number, since it uses as much as digits as its factorization.

3948904447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The square root of 3948904447 is about 62840.3090937656. The cubic root of 3948904447 is about 1580.6129714510.

The spelling of 3948904447 in words is "three billion, nine hundred forty-eight million, nine hundred four thousand, four hundred forty-seven".