82307089 has 2 divisors, whose sum is σ = 82307090. Its totient is φ = 82307088.

The previous prime is 82307063. The next prime is 82307143. The reversal of 82307089 is 98070328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76387600 + 5919489 = 8740^2 + 2433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82307089 is a prime.

It is not a weakly prime, because it can be changed into another prime (82307189) 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, 41153544 + 41153545.

It is an arithmetic number, because the mean of its divisors is an integer number (41153545).

Almost surely, 2^82307089 is an apocalyptic number.

It is an amenable number.

82307089 is a deficient number, since it is larger than the sum of its proper divisors (1).

82307089 is an equidigital number, since it uses as much as digits as its factorization.

82307089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 82307089 is about 9072.3254461026. The cubic root of 82307089 is about 434.9898073095.

The spelling of 82307089 in words is "eighty-two million, three hundred seven thousand, eighty-nine".