3906749971 has 2 divisors, whose sum is σ = 3906749972. Its totient is φ = 3906749970.

The previous prime is 3906749953. The next prime is 3906750047. The reversal of 3906749971 is 1799476093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3906749971 - 2⁹ = 3906749459 is a prime.

It is not a weakly prime, because it can be changed into another prime (3906759971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953374985 + 1953374986.

It is an arithmetic number, because the mean of its divisors is an integer number (1953374986).

Almost surely, 2^3906749971 is an apocalyptic number.

3906749971 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906749971 is an equidigital number, since it uses as much as digits as its factorization.

3906749971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The square root of 3906749971 is about 62503.9996400230. Note that the first 3 decimals coincide. The cubic root of 3906749971 is about 1574.9685013941.

The spelling of 3906749971 in words is "three billion, nine hundred six million, seven hundred forty-nine thousand, nine hundred seventy-one".