3905949601 has 2 divisors, whose sum is σ = 3905949602. Its totient is φ = 3905949600.

The previous prime is 3905949571. The next prime is 3905949613. The reversal of 3905949601 is 1069495093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2027160576 + 1878789025 = 45024^2 + 43345^2 .

It is a cyclic number.

It is not a de Polignac number, because 3905949601 - 2¹³ = 3905941409 is a prime.

It is not a weakly prime, because it can be changed into another prime (3905949661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1952974800 + 1952974801.

It is an arithmetic number, because the mean of its divisors is an integer number (1952974801).

Almost surely, 2^3905949601 is an apocalyptic number.

It is an amenable number.

3905949601 is a deficient number, since it is larger than the sum of its proper divisors (1).

3905949601 is an equidigital number, since it uses as much as digits as its factorization.

3905949601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 3905949601 is about 62497.5967617956. The cubic root of 3905949601 is about 1574.8609402378.

The spelling of 3905949601 in words is "three billion, nine hundred five million, nine hundred forty-nine thousand, six hundred one".