84981360 has 80 divisors (see below), whose sum is σ = 264509856. Its totient is φ = 22569984.

The previous prime is 84981353. The next prime is 84981361. The reversal of 84981360 is 6318948.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84981361) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 75522 + ... + 76638.

Almost surely, 2^84981360 is an apocalyptic number.

84981360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84981360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132254928).

84981360 is an abundant number, since it is smaller than the sum of its proper divisors (179528496).

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

84981360 is a wasteful number, since it uses less digits than its factorization.

84981360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450 (or 1444 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 84981360 is about 9218.5335059325. The cubic root of 84981360 is about 439.6508249034.

The spelling of 84981360 in words is "eighty-four million, nine hundred eighty-one thousand, three hundred sixty".