830668309 has 4 divisors (see below), whose sum is σ = 836644480. Its totient is φ = 824692140.

The previous prime is 830668301. The next prime is 830668313. The reversal of 830668309 is 903866038.

830668309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 830668309 - 2³ = 830668301 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 (830668301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2987877 + ... + 2988154.

It is an arithmetic number, because the mean of its divisors is an integer number (209161120).

Almost surely, 2^830668309 is an apocalyptic number.

It is an amenable number.

830668309 is a deficient number, since it is larger than the sum of its proper divisors (5976171).

830668309 is a wasteful number, since it uses less digits than its factorization.

830668309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976170.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 830668309 is about 28821.3169199466. The cubic root of 830668309 is about 940.0318040394.

The spelling of 830668309 in words is "eight hundred thirty million, six hundred sixty-eight thousand, three hundred nine".