84285810 has 96 divisors (see below), whose sum is σ = 251821440. Its totient is φ = 19160064.

The previous prime is 84285809. The next prime is 84285857. The reversal of 84285810 is 1858248.

It is a super-2 number, since 2×84285810² = 14208195534712200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 222201 + ... + 222579.

It is an arithmetic number, because the mean of its divisors is an integer number (2623140).

Almost surely, 2^84285810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84285810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125910720).

84285810 is an abundant number, since it is smaller than the sum of its proper divisors (167535630).

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

84285810 is a wasteful number, since it uses less digits than its factorization.

84285810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 84285810 is about 9180.7303631029. The cubic root of 84285810 is about 438.4480621613.

The spelling of 84285810 in words is "eighty-four million, two hundred eighty-five thousand, eight hundred ten".