84851020 has 12 divisors (see below), whose sum is σ = 178187184. Its totient is φ = 33940400.

The previous prime is 84850973. The next prime is 84851033. The reversal of 84851020 is 2015848.

It is a self number, because there is not a number n which added to its sum of digits gives 84851020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121256 + ... + 2121295.

It is an arithmetic number, because the mean of its divisors is an integer number (14848932).

Almost surely, 2^84851020 is an apocalyptic number.

It is an amenable number.

84851020 is an abundant number, since it is smaller than the sum of its proper divisors (93336164).

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

84851020 is a wasteful number, since it uses less digits than its factorization.

84851020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242560 (or 4242558 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 84851020 is about 9211.4613390059. The cubic root of 84851020 is about 439.4259386845.

Adding to 84851020 its reverse (2015848), we get a palindrome (86866868).

The spelling of 84851020 in words is "eighty-four million, eight hundred fifty-one thousand, twenty".