830777081 has 2 divisors, whose sum is σ = 830777082. Its totient is φ = 830777080.

The previous prime is 830777047. The next prime is 830777159. The reversal of 830777081 is 180777038.

830777081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567201856 + 263575225 = 23816^2 + 16235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-830777081 is a prime.

It is a super-2 number, since 2×830777081² = 1380381116629761122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (830777281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415388540 + 415388541.

It is an arithmetic number, because the mean of its divisors is an integer number (415388541).

Almost surely, 2^830777081 is an apocalyptic number.

It is an amenable number.

830777081 is a deficient number, since it is larger than the sum of its proper divisors (1).

830777081 is an equidigital number, since it uses as much as digits as its factorization.

830777081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 41.

The square root of 830777081 is about 28823.2038642480. The cubic root of 830777081 is about 940.0728331223.

The spelling of 830777081 in words is "eight hundred thirty million, seven hundred seventy-seven thousand, eighty-one".