84501280 has 48 divisors (see below), whose sum is σ = 200660544. Its totient is φ = 33626880.

The previous prime is 84501211. The next prime is 84501293. The reversal of 84501280 is 8210548.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32509 + ... + 35011.

It is an arithmetic number, because the mean of its divisors is an integer number (4180428).

Almost surely, 2^84501280 is an apocalyptic number.

84501280 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 84501280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100330272).

84501280 is an abundant number, since it is smaller than the sum of its proper divisors (116159264).

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

84501280 is a wasteful number, since it uses less digits than its factorization.

84501280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 84501280 is about 9192.4577779830. The cubic root of 84501280 is about 438.8213634890.

It can be divided in two parts, 8450 and 1280, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 84501280 in words is "eighty-four million, five hundred one thousand, two hundred eighty".