3973801211 has 2 divisors, whose sum is σ = 3973801212. Its totient is φ = 3973801210.

The previous prime is 3973801163. The next prime is 3973801283. The reversal of 3973801211 is 1121083793.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3973801211 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3973801411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986900605 + 1986900606.

It is an arithmetic number, because the mean of its divisors is an integer number (1986900606).

Almost surely, 2^3973801211 is an apocalyptic number.

3973801211 is a deficient number, since it is larger than the sum of its proper divisors (1).

3973801211 is an equidigital number, since it uses as much as digits as its factorization.

3973801211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 3973801211 is about 63038.0933325239. The cubic root of 3973801211 is about 1583.9277925275.

The spelling of 3973801211 in words is "three billion, nine hundred seventy-three million, eight hundred one thousand, two hundred eleven".