84213798 has 16 divisors (see below), whose sum is σ = 168908976. Its totient is φ = 27991040.

The previous prime is 84213797. The next prime is 84213799. The reversal of 84213798 is 89731248.

It is an interprime number because it is at equal distance from previous prime (84213797) and next prime (84213799).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84213791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17763 + ... + 21998.

It is an arithmetic number, because the mean of its divisors is an integer number (10556811).

Almost surely, 2^84213798 is an apocalyptic number.

84213798 is an abundant number, since it is smaller than the sum of its proper divisors (84695178).

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

84213798 is a wasteful number, since it uses less digits than its factorization.

84213798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40119.

The product of its digits is 96768, while the sum is 42.

The square root of 84213798 is about 9176.8076148517. The cubic root of 84213798 is about 438.3231596894.

The spelling of 84213798 in words is "eighty-four million, two hundred thirteen thousand, seven hundred ninety-eight".