It is a Jordan-Polya number, since it can be written as 6! ⋅ 5!.
It is a tau number, because it is divible by the number of its divisors (96).
It is a nialpdrome in base 10 and base 12.
It is a congruent number.
It is an unprimeable number.
286400 is an apocalyptic number.
86400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 86400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
86400 is a wasteful number, since it uses less digits than its factorization.
86400 is an odious number, because the sum of its binary digits is odd.
The square root of 86400 is about 293.9387691340. The cubic root of 86400 is about 44.2083779837.
Adding to 86400 its reverse (468), we get a palindrome (86868).
The spelling of 86400 in words is "eighty-six thousand, four hundred".