88766789 has 2 divisors, whose sum is σ = 88766790. Its totient is φ = 88766788.

The previous prime is 88766771. The next prime is 88766791. The reversal of 88766789 is 98766788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52562500 + 36204289 = 7250^2 + 6017^2 .

It is a cyclic number.

It is not a de Polignac number, because 88766789 - 2¹² = 88762693 is a prime.

Together with 88766791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88736789) 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, 44383394 + 44383395.

It is an arithmetic number, because the mean of its divisors is an integer number (44383395).

Almost surely, 2^88766789 is an apocalyptic number.

It is an amenable number.

88766789 is a deficient number, since it is larger than the sum of its proper divisors (1).

88766789 is an equidigital number, since it uses as much as digits as its factorization.

88766789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 59.

The square root of 88766789 is about 9421.6128661711. The cubic root of 88766789 is about 446.0841955306.

Subtracting 88766789 from its reverse (98766788), we obtain a palindrome (9999999).

It can be divided in two parts, 887 and 66789, that added together give a palindrome (67676).

The spelling of 88766789 in words is "eighty-eight million, seven hundred sixty-six thousand, seven hundred eighty-nine".