68089086 has 72 divisors (see below), whose sum is σ = 165863880. Its totient is φ = 20925216.

The previous prime is 68089061. The next prime is 68089117. The reversal of 68089086 is 68098086.

It is a super-2 number, since 2×68089086² = 9272247264630792, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 81720 + ... + 82548.

It is an arithmetic number, because the mean of its divisors is an integer number (2303665).

Almost surely, 2^68089086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68089086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82931940).

68089086 is an abundant number, since it is smaller than the sum of its proper divisors (97774794).

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

68089086 is a wasteful number, since it uses less digits than its factorization.

68089086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 68089086 is about 8251.6111154126. The cubic root of 68089086 is about 408.3436766874.

The spelling of 68089086 in words is "sixty-eight million, eighty-nine thousand, eighty-six".