3997754213 has 2 divisors, whose sum is σ = 3997754214. Its totient is φ = 3997754212.

The previous prime is 3997754209. The next prime is 3997754219. The reversal of 3997754213 is 3124577993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3508548289 + 489205924 = 59233^2 + 22118^2 .

It is an emirp because it is prime and its reverse (3124577993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3997754213 - 2² = 3997754209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3997754219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998877106 + 1998877107.

It is an arithmetic number, because the mean of its divisors is an integer number (1998877107).

Almost surely, 2^3997754213 is an apocalyptic number.

It is an amenable number.

3997754213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3997754213 is an equidigital number, since it uses as much as digits as its factorization.

3997754213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 50.

The square root of 3997754213 is about 63227.7962054665. The cubic root of 3997754213 is about 1587.1039159654.

The spelling of 3997754213 in words is "three billion, nine hundred ninety-seven million, seven hundred fifty-four thousand, two hundred thirteen".