3946401911 has 2 divisors, whose sum is σ = 3946401912. Its totient is φ = 3946401910.

The previous prime is 3946401839. The next prime is 3946401919. The reversal of 3946401911 is 1191046493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3946401911 - 2¹⁸ = 3946139767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3946401919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1973200955 + 1973200956.

It is an arithmetic number, because the mean of its divisors is an integer number (1973200956).

Almost surely, 2^3946401911 is an apocalyptic number.

3946401911 is a deficient number, since it is larger than the sum of its proper divisors (1).

3946401911 is an equidigital number, since it uses as much as digits as its factorization.

3946401911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 3946401911 is about 62820.3940691238. The cubic root of 3946401911 is about 1580.2790073696.

The spelling of 3946401911 in words is "three billion, nine hundred forty-six million, four hundred one thousand, nine hundred eleven".