830731039 has 2 divisors, whose sum is σ = 830731040. Its totient is φ = 830731038.

The previous prime is 830731037. The next prime is 830731049. The reversal of 830731039 is 930137038.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 830731039 - 2¹ = 830731037 is a prime.

It is a super-2 number, since 2×830731039² = 1380228118316039042, which contains 22 as substring.

Together with 830731037, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 830730995 and 830731013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830731037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415365519 + 415365520.

It is an arithmetic number, because the mean of its divisors is an integer number (415365520).

Almost surely, 2^830731039 is an apocalyptic number.

830731039 is a deficient number, since it is larger than the sum of its proper divisors (1).

830731039 is an equidigital number, since it uses as much as digits as its factorization.

830731039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 830731039 is about 28822.4051564057. The cubic root of 830731039 is about 940.0554663966.

The spelling of 830731039 in words is "eight hundred thirty million, seven hundred thirty-one thousand, thirty-nine".