9090676789 has 2 divisors, whose sum is σ = 9090676790. Its totient is φ = 9090676788.

The previous prime is 9090676757. The next prime is 9090676799. The reversal of 9090676789 is 9876760909.

9090676789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5190049764 + 3900627025 = 72042^2 + 62455^2 .

It is an emirp because it is prime and its reverse (9876760909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9090676789 - 2⁵ = 9090676757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9090676799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4545338394 + 4545338395.

It is an arithmetic number, because the mean of its divisors is an integer number (4545338395).

Almost surely, 2^9090676789 is an apocalyptic number.

It is an amenable number.

9090676789 is a deficient number, since it is larger than the sum of its proper divisors (1).

9090676789 is an equidigital number, since it uses as much as digits as its factorization.

9090676789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The square root of 9090676789 is about 95345.0407152884. The cubic root of 9090676789 is about 2087.0462452101.

The spelling of 9090676789 in words is "nine billion, ninety million, six hundred seventy-six thousand, seven hundred eighty-nine".