1999995713 has 2 divisors, whose sum is σ = 1999995714. Its totient is φ = 1999995712.

The previous prime is 1999995707. The next prime is 1999995731. The reversal of 1999995713 is 3175999991.

It is a happy number.

Together with next prime (1999995731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1995230224 + 4765489 = 44668^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 1999995713 - 2²⁶ = 1932886849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1999995113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999997856 + 999997857.

It is an arithmetic number, because the mean of its divisors is an integer number (999997857).

Almost surely, 2^1999995713 is an apocalyptic number.

It is an amenable number.

1999995713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1999995713 is an equidigital number, since it uses as much as digits as its factorization.

1999995713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6200145, while the sum is 62.

The square root of 1999995713 is about 44721.3116198530. The cubic root of 1999995713 is about 1259.9201496806.

The spelling of 1999995713 in words is "one billion, nine hundred ninety-nine million, nine hundred ninety-five thousand, seven hundred thirteen".