3945964471 has 2 divisors, whose sum is σ = 3945964472. Its totient is φ = 3945964470.

The previous prime is 3945964453. The next prime is 3945964501. The reversal of 3945964471 is 1744695493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3945964471 - 2¹⁹ = 3945440183 is a prime.

It is a super-3 number, since 3×3945964471³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3945964871) 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, 1972982235 + 1972982236.

It is an arithmetic number, because the mean of its divisors is an integer number (1972982236).

Almost surely, 2^3945964471 is an apocalyptic number.

3945964471 is a deficient number, since it is larger than the sum of its proper divisors (1).

3945964471 is an equidigital number, since it uses as much as digits as its factorization.

3945964471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 52.

The square root of 3945964471 is about 62816.9123007491. The cubic root of 3945964471 is about 1580.2206163924.

The spelling of 3945964471 in words is "three billion, nine hundred forty-five million, nine hundred sixty-four thousand, four hundred seventy-one".