1973889713 has 2 divisors, whose sum is σ = 1973889714. Its totient is φ = 1973889712.

The previous prime is 1973889707. The next prime is 1973889751. The reversal of 1973889713 is 3179883791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1651040689 + 322849024 = 40633^2 + 17968^2 .

It is a cyclic number.

It is not a de Polignac number, because 1973889713 - 2⁸ = 1973889457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1973889913) 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, 986944856 + 986944857.

It is an arithmetic number, because the mean of its divisors is an integer number (986944857).

Almost surely, 2^1973889713 is an apocalyptic number.

It is an amenable number.

1973889713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973889713 is an equidigital number, since it uses as much as digits as its factorization.

1973889713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 56.

The square root of 1973889713 is about 44428.4786257644. The cubic root of 1973889713 is about 1254.4141989689.

The spelling of 1973889713 in words is "one billion, nine hundred seventy-three million, eight hundred eighty-nine thousand, seven hundred thirteen".