3974892871 has 2 divisors, whose sum is σ = 3974892872. Its totient is φ = 3974892870.

The previous prime is 3974892847. The next prime is 3974892923. The reversal of 3974892871 is 1782984793.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3974892871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3974892841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987446435 + 1987446436.

It is an arithmetic number, because the mean of its divisors is an integer number (1987446436).

Almost surely, 2^3974892871 is an apocalyptic number.

3974892871 is a deficient number, since it is larger than the sum of its proper divisors (1).

3974892871 is an equidigital number, since it uses as much as digits as its factorization.

3974892871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 58.

The square root of 3974892871 is about 63046.7514706349. The cubic root of 3974892871 is about 1584.0728217837.

The spelling of 3974892871 in words is "three billion, nine hundred seventy-four million, eight hundred ninety-two thousand, eight hundred seventy-one".