1984109293 has 2 divisors, whose sum is σ = 1984109294. Its totient is φ = 1984109292.

The previous prime is 1984109279. The next prime is 1984109297. The reversal of 1984109293 is 3929014891.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1888597764 + 95511529 = 43458^2 + 9773^2 .

It is a cyclic number.

It is not a de Polignac number, because 1984109293 - 2¹³ = 1984101101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1984109297) 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, 992054646 + 992054647.

It is an arithmetic number, because the mean of its divisors is an integer number (992054647).

Almost surely, 2^1984109293 is an apocalyptic number.

It is an amenable number.

1984109293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1984109293 is an equidigital number, since it uses as much as digits as its factorization.

1984109293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 1984109293 is about 44543.3417358869. The cubic root of 1984109293 is about 1256.5753338471.

The spelling of 1984109293 in words is "one billion, nine hundred eighty-four million, one hundred nine thousand, two hundred ninety-three".