3980908189 has 2 divisors, whose sum is σ = 3980908190. Its totient is φ = 3980908188.

The previous prime is 3980908187. The next prime is 3980908193. The reversal of 3980908189 is 9818090893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3042404964 + 938503225 = 55158^2 + 30635^2 .

It is a cyclic number.

It is not a de Polignac number, because 3980908189 - 2¹ = 3980908187 is a prime.

Together with 3980908187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3980908187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1990454094 + 1990454095.

It is an arithmetic number, because the mean of its divisors is an integer number (1990454095).

Almost surely, 2^3980908189 is an apocalyptic number.

It is an amenable number.

3980908189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3980908189 is an equidigital number, since it uses as much as digits as its factorization.

3980908189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 55.

The square root of 3980908189 is about 63094.4386534978. The cubic root of 3980908189 is about 1584.8714931290.

The spelling of 3980908189 in words is "three billion, nine hundred eighty million, nine hundred eight thousand, one hundred eighty-nine".