86809360 has 80 divisors (see below), whose sum is σ = 229806720. Its totient is φ = 30187520.

The previous prime is 86809321. The next prime is 86809367. The reversal of 86809360 is 6390868.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (86809367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18096 + ... + 22384.

It is an arithmetic number, because the mean of its divisors is an integer number (2872584).

Almost surely, 2^86809360 is an apocalyptic number.

86809360 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 86809360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114903360).

86809360 is an abundant number, since it is smaller than the sum of its proper divisors (142997360).

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

86809360 is a wasteful number, since it uses less digits than its factorization.

86809360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336 (or 4330 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 86809360 is about 9317.1540719256. The cubic root of 86809360 is about 442.7808722524.

The spelling of 86809360 in words is "eighty-six million, eight hundred nine thousand, three hundred sixty".