3898118249 has 2 divisors, whose sum is σ = 3898118250. Its totient is φ = 3898118248.

The previous prime is 3898118227. The next prime is 3898118291. The reversal of 3898118249 is 9428118983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3716731225 + 181387024 = 60965^2 + 13468^2 .

It is a cyclic number.

It is not a de Polignac number, because 3898118249 - 2¹⁶ = 3898052713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3898118249.

It is not a weakly prime, because it can be changed into another prime (3898118149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1949059124 + 1949059125.

It is an arithmetic number, because the mean of its divisors is an integer number (1949059125).

Almost surely, 2^3898118249 is an apocalyptic number.

It is an amenable number.

3898118249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3898118249 is an equidigital number, since it uses as much as digits as its factorization.

3898118249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 53.

The square root of 3898118249 is about 62434.9121005227. The cubic root of 3898118249 is about 1573.8077143051.

The spelling of 3898118249 in words is "three billion, eight hundred ninety-eight million, one hundred eighteen thousand, two hundred forty-nine".