84388198 has 16 divisors (see below), whose sum is σ = 129047040. Its totient is φ = 41380416.

The previous prime is 84388181. The next prime is 84388201. The reversal of 84388198 is 89188348.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 20740 + ... + 24472.

It is an arithmetic number, because the mean of its divisors is an integer number (8065440).

Almost surely, 2^84388198 is an apocalyptic number.

84388198 is a deficient number, since it is larger than the sum of its proper divisors (44658842).

84388198 is a wasteful number, since it uses less digits than its factorization.

84388198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951.

The product of its digits is 442368, while the sum is 49.

The square root of 84388198 is about 9186.3049154706. The cubic root of 84388198 is about 438.6255283907.

The spelling of 84388198 in words is "eighty-four million, three hundred eighty-eight thousand, one hundred ninety-eight".