3901881197 has 2 divisors, whose sum is σ = 3901881198. Its totient is φ = 3901881196.

The previous prime is 3901881121. The next prime is 3901881239. The reversal of 3901881197 is 7911881093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3631147081 + 270734116 = 60259^2 + 16454^2 .

It is an emirp because it is prime and its reverse (7911881093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3901881197 - 2³⁰ = 2828139373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3901821197) 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, 1950940598 + 1950940599.

It is an arithmetic number, because the mean of its divisors is an integer number (1950940599).

Almost surely, 2^3901881197 is an apocalyptic number.

It is an amenable number.

3901881197 is a deficient number, since it is larger than the sum of its proper divisors (1).

3901881197 is an equidigital number, since it uses as much as digits as its factorization.

3901881197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 47.

The square root of 3901881197 is about 62465.0397982744. The cubic root of 3901881197 is about 1574.3139630156.

The spelling of 3901881197 in words is "three billion, nine hundred one million, eight hundred eighty-one thousand, one hundred ninety-seven".