830941009 has 2 divisors, whose sum is σ = 830941010. Its totient is φ = 830941008.

The previous prime is 830940997. The next prime is 830941021. The reversal of 830941009 is 900149038.

It is a balanced prime because it is at equal distance from previous prime (830940997) and next prime (830941021).

It can be written as a sum of positive squares in only one way, i.e., 664608400 + 166332609 = 25780^2 + 12897^2 .

It is a cyclic number.

It is not a de Polignac number, because 830941009 - 2¹⁹ = 830416721 is a prime.

It is not a weakly prime, because it can be changed into another prime (830941109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415470504 + 415470505.

It is an arithmetic number, because the mean of its divisors is an integer number (415470505).

Almost surely, 2^830941009 is an apocalyptic number.

It is an amenable number.

830941009 is a deficient number, since it is larger than the sum of its proper divisors (1).

830941009 is an equidigital number, since it uses as much as digits as its factorization.

830941009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 830941009 is about 28826.0474050814. The cubic root of 830941009 is about 940.1346604275.

The spelling of 830941009 in words is "eight hundred thirty million, nine hundred forty-one thousand, nine".