88685789 has 2 divisors, whose sum is σ = 88685790. Its totient is φ = 88685788.

The previous prime is 88685759. The next prime is 88685809. The reversal of 88685789 is 98758688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74563225 + 14122564 = 8635^2 + 3758^2 .

It is a cyclic number.

It is not a de Polignac number, because 88685789 - 2¹² = 88681693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88685759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44342894 + 44342895.

It is an arithmetic number, because the mean of its divisors is an integer number (44342895).

Almost surely, 2^88685789 is an apocalyptic number.

It is an amenable number.

88685789 is a deficient number, since it is larger than the sum of its proper divisors (1).

88685789 is an equidigital number, since it uses as much as digits as its factorization.

88685789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 59.

The square root of 88685789 is about 9417.3132580370. The cubic root of 88685789 is about 445.9484697850.

The spelling of 88685789 in words is "eighty-eight million, six hundred eighty-five thousand, seven hundred eighty-nine".