830855863 has 4 divisors (see below), whose sum is σ = 830918088. Its totient is φ = 830793640.

The previous prime is 830855849. The next prime is 830855869. The reversal of 830855863 is 368558038.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 368558038 = 2 ⋅184279019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-830855863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830855869) 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 in 3 ways as a sum of consecutive naturals, for example, 2008 + ... + 40813.

It is an arithmetic number, because the mean of its divisors is an integer number (207729522).

Almost surely, 2^830855863 is an apocalyptic number.

830855863 is a deficient number, since it is larger than the sum of its proper divisors (62225).

830855863 is a wasteful number, since it uses less digits than its factorization.

830855863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62224.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 830855863 is about 28824.5704738163. The cubic root of 830855863 is about 940.1025476625.

The spelling of 830855863 in words is "eight hundred thirty million, eight hundred fifty-five thousand, eight hundred sixty-three".