84115020 has 48 divisors (see below), whose sum is σ = 256935168. Its totient is φ = 20391360.

The previous prime is 84115001. The next prime is 84115037. The reversal of 84115020 is 2051148.

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 15 ways as a sum of consecutive naturals, for example, 63064 + ... + 64383.

It is an arithmetic number, because the mean of its divisors is an integer number (5352816).

Almost surely, 2^84115020 is an apocalyptic number.

It is an amenable number.

84115020 is an abundant number, since it is smaller than the sum of its proper divisors (172820148).

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

84115020 is a wasteful number, since it uses less digits than its factorization.

84115020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127470 (or 127468 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 84115020 is about 9171.4240987973. The cubic root of 84115020 is about 438.1517165874.

Adding to 84115020 its reverse (2051148), we get a palindrome (86166168).

It can be divided in two parts, 8411 and 5020, that added together give a palindrome (13431).

The spelling of 84115020 in words is "eighty-four million, one hundred fifteen thousand, twenty".