3948953779 has 2 divisors, whose sum is σ = 3948953780. Its totient is φ = 3948953778.

The previous prime is 3948953777. The next prime is 3948953819. The reversal of 3948953779 is 9773598493.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3948953779 - 2¹ = 3948953777 is a prime.

Together with 3948953777, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3948953779.

It is not a weakly prime, because it can be changed into another prime (3948953773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974476889 + 1974476890.

It is an arithmetic number, because the mean of its divisors is an integer number (1974476890).

Almost surely, 2^3948953779 is an apocalyptic number.

3948953779 is a deficient number, since it is larger than the sum of its proper divisors (1).

3948953779 is an equidigital number, since it uses as much as digits as its factorization.

3948953779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51438240, while the sum is 64.

The square root of 3948953779 is about 62840.7016112965. The cubic root of 3948953779 is about 1580.6195534009.

The spelling of 3948953779 in words is "three billion, nine hundred forty-eight million, nine hundred fifty-three thousand, seven hundred seventy-nine".