999712913 has 2 divisors, whose sum is σ = 999712914. Its totient is φ = 999712912.

The previous prime is 999712867. The next prime is 999712919. The reversal of 999712913 is 319217999.

999712913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 715723009 + 283989904 = 26753^2 + 16852^2 .

It is an emirp because it is prime and its reverse (319217999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999712913 - 2⁶ = 999712849 is a prime.

It is not a weakly prime, because it can be changed into another prime (999712919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499856456 + 499856457.

It is an arithmetic number, because the mean of its divisors is an integer number (499856457).

Almost surely, 2^999712913 is an apocalyptic number.

It is an amenable number.

999712913 is a deficient number, since it is larger than the sum of its proper divisors (1).

999712913 is an equidigital number, since it uses as much as digits as its factorization.

999712913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 50.

The square root of 999712913 is about 31618.2370318144. The cubic root of 999712913 is about 999.9042951742.

The spelling of 999712913 in words is "nine hundred ninety-nine million, seven hundred twelve thousand, nine hundred thirteen".