85669888 has 48 divisors (see below), whose sum is σ = 174447000. Its totient is φ = 42049536.

The previous prime is 85669877. The next prime is 85669897. The reversal of 85669888 is 88896658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120478 + ... + 121186.

Almost surely, 2^85669888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85669888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87223500).

85669888 is an abundant number, since it is smaller than the sum of its proper divisors (88777112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85669888 is an equidigital number, since it uses as much as digits as its factorization.

85669888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 770 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 58.

The square root of 85669888 is about 9255.8029365366. The cubic root of 85669888 is about 440.8349984234.

The spelling of 85669888 in words is "eighty-five million, six hundred sixty-nine thousand, eight hundred eighty-eight".