3948953819 has 2 divisors, whose sum is σ = 3948953820. Its totient is φ = 3948953818.

The previous prime is 3948953779. The next prime is 3948953837. The reversal of 3948953819 is 9183598493.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3948953819 is a prime.

It is a super-2 number, since 2×3948953819² = 31188472529189369522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3948953849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974476909 + 1974476910.

It is an arithmetic number, because the mean of its divisors is an integer number (1974476910).

Almost surely, 2^3948953819 is an apocalyptic number.

3948953819 is a deficient number, since it is larger than the sum of its proper divisors (1).

3948953819 is an equidigital number, since it uses as much as digits as its factorization.

3948953819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 59.

The square root of 3948953819 is about 62840.7019295615. The cubic root of 3948953819 is about 1580.6195587378.

The spelling of 3948953819 in words is "three billion, nine hundred forty-eight million, nine hundred fifty-three thousand, eight hundred nineteen".