84086320 has 20 divisors (see below), whose sum is σ = 195500880. Its totient is φ = 33634496.

The previous prime is 84086297. The next prime is 84086323. The reversal of 84086320 is 2368048.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×84086320² = 14141018422284800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84086323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525460 + ... + 525619.

It is an arithmetic number, because the mean of its divisors is an integer number (9775044).

Almost surely, 2^84086320 is an apocalyptic number.

84086320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84086320 is an abundant number, since it is smaller than the sum of its proper divisors (111414560).

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

84086320 is a wasteful number, since it uses less digits than its factorization.

84086320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051092 (or 1051086 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 84086320 is about 9169.8593228032. The cubic root of 84086320 is about 438.1018785413.

The spelling of 84086320 in words is "eighty-four million, eighty-six thousand, three hundred twenty".