88711789 has 2 divisors, whose sum is σ = 88711790. Its totient is φ = 88711788.

The previous prime is 88711723. The next prime is 88711793. The reversal of 88711789 is 98711788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85932900 + 2778889 = 9270^2 + 1667^2 .

It is a cyclic number.

It is not a de Polignac number, because 88711789 - 2¹³ = 88703597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88711289) 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, 44355894 + 44355895.

It is an arithmetic number, because the mean of its divisors is an integer number (44355895).

Almost surely, 2^88711789 is an apocalyptic number.

It is an amenable number.

88711789 is a deficient number, since it is larger than the sum of its proper divisors (1).

88711789 is an equidigital number, since it uses as much as digits as its factorization.

88711789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 49.

The square root of 88711789 is about 9418.6935930627. The cubic root of 88711789 is about 445.9920450765.

Subtracting 88711789 from its reverse (98711788), we obtain a palindrome (9999999).

The spelling of 88711789 in words is "eighty-eight million, seven hundred eleven thousand, seven hundred eighty-nine".