1936738289 has 2 divisors, whose sum is σ = 1936738290. Its totient is φ = 1936738288.

The previous prime is 1936738273. The next prime is 1936738333. The reversal of 1936738289 is 9828376391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1936704064 + 34225 = 44008^2 + 185^2 .

It is an emirp because it is prime and its reverse (9828376391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1936738289 - 2⁴ = 1936738273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1936738589) 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, 968369144 + 968369145.

It is an arithmetic number, because the mean of its divisors is an integer number (968369145).

Almost surely, 2^1936738289 is an apocalyptic number.

It is an amenable number.

1936738289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1936738289 is an equidigital number, since it uses as much as digits as its factorization.

1936738289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 56.

The square root of 1936738289 is about 44008.3888480367. The cubic root of 1936738289 is about 1246.4943458221.

The spelling of 1936738289 in words is "one billion, nine hundred thirty-six million, seven hundred thirty-eight thousand, two hundred eighty-nine".