8212610789 has 2 divisors, whose sum is σ = 8212610790. Its totient is φ = 8212610788.

The previous prime is 8212610779. The next prime is 8212610831. The reversal of 8212610789 is 9870162128.

8212610789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4794454564 + 3418156225 = 69242^2 + 58465^2 .

It is a cyclic number.

It is not a de Polignac number, because 8212610789 - 2⁸ = 8212610533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8212610729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4106305394 + 4106305395.

It is an arithmetic number, because the mean of its divisors is an integer number (4106305395).

Almost surely, 2^8212610789 is an apocalyptic number.

It is an amenable number.

8212610789 is a deficient number, since it is larger than the sum of its proper divisors (1).

8212610789 is an equidigital number, since it uses as much as digits as its factorization.

8212610789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 8212610789 is about 90623.4560640897. The cubic root of 8212610789 is about 2017.5628868068.

The spelling of 8212610789 in words is "eight billion, two hundred twelve million, six hundred ten thousand, seven hundred eighty-nine".