84216054 has 48 divisors (see below), whose sum is σ = 184775472. Its totient is φ = 25436736.

The previous prime is 84216053. The next prime is 84216061. The reversal of 84216054 is 45061248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84216053) 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 23 ways as a sum of consecutive naturals, for example, 486712 + ... + 486884.

It is an arithmetic number, because the mean of its divisors is an integer number (3849489).

Almost surely, 2^84216054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84216054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92387736).

84216054 is an abundant number, since it is smaller than the sum of its proper divisors (100559418).

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

84216054 is a wasteful number, since it uses less digits than its factorization.

84216054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 84216054 is about 9176.9305325909. The cubic root of 84216054 is about 438.3270737282.

The spelling of 84216054 in words is "eighty-four million, two hundred sixteen thousand, fifty-four".