84216506 has 8 divisors (see below), whose sum is σ = 137808864. Its totient is φ = 38280220.

The previous prime is 84216499. The next prime is 84216511. The reversal of 84216506 is 60561248.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1913990 + ... + 1914033.

It is an arithmetic number, because the mean of its divisors is an integer number (17226108).

Almost surely, 2^84216506 is an apocalyptic number.

84216506 is a deficient number, since it is larger than the sum of its proper divisors (53592358).

84216506 is a wasteful number, since it uses less digits than its factorization.

84216506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828036.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 84216506 is about 9176.9551595287. The cubic root of 84216506 is about 438.3278579155.

The spelling of 84216506 in words is "eighty-four million, two hundred sixteen thousand, five hundred six".