830757971 has 2 divisors, whose sum is σ = 830757972. Its totient is φ = 830757970.

The previous prime is 830757931. The next prime is 830757973. The reversal of 830757971 is 179757038.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-830757971 is a prime.

Together with 830757973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (830757973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415378985 + 415378986.

It is an arithmetic number, because the mean of its divisors is an integer number (415378986).

Almost surely, 2^830757971 is an apocalyptic number.

830757971 is a deficient number, since it is larger than the sum of its proper divisors (1).

830757971 is an equidigital number, since it uses as much as digits as its factorization.

830757971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 830757971 is about 28822.8723585974. The cubic root of 830757971 is about 940.0656250396.

The spelling of 830757971 in words is "eight hundred thirty million, seven hundred fifty-seven thousand, nine hundred seventy-one".