830770321 has 4 divisors (see below), whose sum is σ = 833124132. Its totient is φ = 828416512.

The previous prime is 830770309. The next prime is 830770379. The reversal of 830770321 is 123077038.

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 122412096 + 708358225 = 11064^2 + 26615^2 .

It is a cyclic number.

It is not a de Polignac number, because 830770321 - 2¹³ = 830762129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830770021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176376 + ... + 1177081.

It is an arithmetic number, because the mean of its divisors is an integer number (208281033).

Almost surely, 2^830770321 is an apocalyptic number.

It is an amenable number.

830770321 is a deficient number, since it is larger than the sum of its proper divisors (2353811).

830770321 is a wasteful number, since it uses less digits than its factorization.

830770321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353810.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 830770321 is about 28823.0865973788. The cubic root of 830770321 is about 940.0702833369.

The spelling of 830770321 in words is "eight hundred thirty million, seven hundred seventy thousand, three hundred twenty-one".