3405209971 has 2 divisors, whose sum is σ = 3405209972. Its totient is φ = 3405209970.

The previous prime is 3405209959. The next prime is 3405209981. The reversal of 3405209971 is 1799025043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3405209971 - 2⁹ = 3405209459 is a prime.

It is not a weakly prime, because it can be changed into another prime (3405209921) 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, 1702604985 + 1702604986.

It is an arithmetic number, because the mean of its divisors is an integer number (1702604986).

Almost surely, 2^3405209971 is an apocalyptic number.

3405209971 is a deficient number, since it is larger than the sum of its proper divisors (1).

3405209971 is an equidigital number, since it uses as much as digits as its factorization.

3405209971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 3405209971 is about 58354.1769798872. The cubic root of 3405209971 is about 1504.4622635653.

The spelling of 3405209971 in words is "three billion, four hundred five million, two hundred nine thousand, nine hundred seventy-one".