830285305 has 4 divisors (see below), whose sum is σ = 996342372. Its totient is φ = 664228240.

The previous prime is 830285297. The next prime is 830285311. The reversal of 830285305 is 503582038.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 644753664 + 185531641 = 25392^2 + 13621^2 .

It is not a de Polignac number, because 830285305 - 2³ = 830285297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83028526 + ... + 83028535.

It is an arithmetic number, because the mean of its divisors is an integer number (249085593).

Almost surely, 2^830285305 is an apocalyptic number.

It is an amenable number.

830285305 is a deficient number, since it is larger than the sum of its proper divisors (166057067).

830285305 is a wasteful number, since it uses less digits than its factorization.

830285305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166057066.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 830285305 is about 28814.6716968977. The cubic root of 830285305 is about 939.8873054124.

The spelling of 830285305 in words is "eight hundred thirty million, two hundred eighty-five thousand, three hundred five".