88788789 has 12 divisors (see below), whose sum is σ = 131717196. Its totient is φ = 57592512.

The previous prime is 88788757. The next prime is 88788827. The reversal of 88788789 is 98788788.

It can be written as a sum of positive squares in 2 ways, for example, as 81270225 + 7518564 = 9015^2 + 2742^2 .

It is not a de Polignac number, because 88788789 - 2⁵ = 88788757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88788719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132984 + ... + 133649.

It is an arithmetic number, because the mean of its divisors is an integer number (10976433).

Almost surely, 2^88788789 is an apocalyptic number.

It is an amenable number.

88788789 is a deficient number, since it is larger than the sum of its proper divisors (42928407).

88788789 is a wasteful number, since it uses less digits than its factorization.

88788789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266676 (or 266673 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 63.

The square root of 88788789 is about 9422.7803221767. The cubic root of 88788789 is about 446.1210450542.

Subtracting 88788789 from its reverse (98788788), we obtain a palindrome (9999999).

It can be divided in two parts, 887 and 88789, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 88788789 in words is "eighty-eight million, seven hundred eighty-eight thousand, seven hundred eighty-nine".