83230909 has 2 divisors, whose sum is σ = 83230910. Its totient is φ = 83230908.

The previous prime is 83230891. The next prime is 83230921. The reversal of 83230909 is 90903238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65966884 + 17264025 = 8122^2 + 4155^2 .

It is a cyclic number.

It is not a de Polignac number, because 83230909 - 2⁷ = 83230781 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83230999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41615454 + 41615455.

It is an arithmetic number, because the mean of its divisors is an integer number (41615455).

Almost surely, 2^83230909 is an apocalyptic number.

It is an amenable number.

83230909 is a deficient number, since it is larger than the sum of its proper divisors (1).

83230909 is an equidigital number, since it uses as much as digits as its factorization.

83230909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 83230909 is about 9123.0975551070. The cubic root of 83230909 is about 436.6112072085.

The spelling of 83230909 in words is "eighty-three million, two hundred thirty thousand, nine hundred nine".