84388998 has 32 divisors (see below), whose sum is σ = 172569600. Its totient is φ = 27503136.

The previous prime is 84388991. The next prime is 84389009. The reversal of 84388998 is 89988348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84388991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78408 + ... + 79476.

It is an arithmetic number, because the mean of its divisors is an integer number (5392800).

Almost surely, 2^84388998 is an apocalyptic number.

84388998 is an abundant number, since it is smaller than the sum of its proper divisors (88180602).

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

84388998 is a wasteful number, since it uses less digits than its factorization.

84388998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its digits is 3981312, while the sum is 57.

The square root of 84388998 is about 9186.3484584464. The cubic root of 84388998 is about 438.6269144428.

The spelling of 84388998 in words is "eighty-four million, three hundred eighty-eight thousand, nine hundred ninety-eight".