3948455843 has 2 divisors, whose sum is σ = 3948455844. Its totient is φ = 3948455842.

The previous prime is 3948455837. The next prime is 3948455867. The reversal of 3948455843 is 3485548493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3948455843 - 2¹² = 3948451747 is a prime.

It is not a weakly prime, because it can be changed into another prime (3948455893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974227921 + 1974227922.

It is an arithmetic number, because the mean of its divisors is an integer number (1974227922).

Almost surely, 2^3948455843 is an apocalyptic number.

3948455843 is a deficient number, since it is larger than the sum of its proper divisors (1).

3948455843 is an equidigital number, since it uses as much as digits as its factorization.

3948455843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 53.

The square root of 3948455843 is about 62836.7395955583. The cubic root of 3948455843 is about 1580.5531155117.

The spelling of 3948455843 in words is "three billion, nine hundred forty-eight million, four hundred fifty-five thousand, eight hundred forty-three".