830635643 has 2 divisors, whose sum is σ = 830635644. Its totient is φ = 830635642.

The previous prime is 830635613. The next prime is 830635651. The reversal of 830635643 is 346536038.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 830635643 - 2¹⁶ = 830570107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 830635597 and 830635606.

It is not a weakly prime, because it can be changed into another prime (830635613) 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, 415317821 + 415317822.

It is an arithmetic number, because the mean of its divisors is an integer number (415317822).

Almost surely, 2^830635643 is an apocalyptic number.

830635643 is a deficient number, since it is larger than the sum of its proper divisors (1).

830635643 is an equidigital number, since it uses as much as digits as its factorization.

830635643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 830635643 is about 28820.7502157734. The cubic root of 830635643 is about 940.0194816394.

The spelling of 830635643 in words is "eight hundred thirty million, six hundred thirty-five thousand, six hundred forty-three".