830505773 has 2 divisors, whose sum is σ = 830505774. Its totient is φ = 830505772.

The previous prime is 830505733. The next prime is 830505829. The reversal of 830505773 is 377505038.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 782992324 + 47513449 = 27982^2 + 6893^2 .

It is a cyclic number.

It is not a de Polignac number, because 830505773 - 2⁸ = 830505517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830505733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415252886 + 415252887.

It is an arithmetic number, because the mean of its divisors is an integer number (415252887).

Almost surely, 2^830505773 is an apocalyptic number.

It is an amenable number.

830505773 is a deficient number, since it is larger than the sum of its proper divisors (1).

830505773 is an equidigital number, since it uses as much as digits as its factorization.

830505773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 830505773 is about 28818.4970635181. The cubic root of 830505773 is about 939.9704883597.

The spelling of 830505773 in words is "eight hundred thirty million, five hundred five thousand, seven hundred seventy-three".