999828757 has 2 divisors, whose sum is σ = 999828758. Its totient is φ = 999828756.

The previous prime is 999828677. The next prime is 999828779. The reversal of 999828757 is 757828999.

999828757 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., 645109201 + 354719556 = 25399^2 + 18834^2 .

It is an emirp because it is prime and its reverse (757828999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999828757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999828257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499914378 + 499914379.

It is an arithmetic number, because the mean of its divisors is an integer number (499914379).

Almost surely, 2^999828757 is an apocalyptic number.

It is an amenable number.

999828757 is a deficient number, since it is larger than the sum of its proper divisors (1).

999828757 is an equidigital number, since it uses as much as digits as its factorization.

999828757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 64.

The square root of 999828757 is about 31620.0688961931. The cubic root of 999828757 is about 999.9429157414.

The spelling of 999828757 in words is "nine hundred ninety-nine million, eight hundred twenty-eight thousand, seven hundred fifty-seven".