84529998 has 72 divisors (see below), whose sum is σ = 214475040. Its totient is φ = 23990400.

The previous prime is 84529997. The next prime is 84529999. The reversal of 84529998 is 89992548.

It is an interprime number because it is at equal distance from previous prime (84529997) and next prime (84529999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84529997) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 210598 + ... + 210998.

It is an arithmetic number, because the mean of its divisors is an integer number (2978820).

Almost surely, 2^84529998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84529998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107237520).

84529998 is an abundant number, since it is smaller than the sum of its proper divisors (129945042).

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

84529998 is a wasteful number, since it uses less digits than its factorization.

84529998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 652 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 84529998 is about 9194.0196867312. The cubic root of 84529998 is about 438.8710694208.

The spelling of 84529998 in words is "eighty-four million, five hundred twenty-nine thousand, nine hundred ninety-eight".