984181489 has 2 divisors, whose sum is σ = 984181490. Its totient is φ = 984181488.

The previous prime is 984181417. The next prime is 984181519.

984181489 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530150625 + 454030864 = 23025^2 + 21308^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 984181489 - 2¹³ = 984173297 is a prime.

It is a super-2 number, since 2×984181489² = 1937226406580514242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (984181189) 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, 492090744 + 492090745.

It is an arithmetic number, because the mean of its divisors is an integer number (492090745).

Almost surely, 2^984181489 is an apocalyptic number.

It is an amenable number.

984181489 is a deficient number, since it is larger than the sum of its proper divisors (1).

984181489 is an equidigital number, since it uses as much as digits as its factorization.

984181489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 52.

The square root of 984181489 is about 31371.6669783421. Note that the first 3 decimals coincide. The cubic root of 984181489 is about 994.6991132502.

The spelling of 984181489 in words is "nine hundred eighty-four million, one hundred eighty-one thousand, four hundred eighty-nine".