84530480 has 40 divisors (see below), whose sum is σ = 199875600. Its totient is φ = 33237248.

The previous prime is 84530429. The next prime is 84530489. The reversal of 84530480 is 8403548.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (84530489) 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 7 ways as a sum of consecutive naturals, for example, 4235 + ... + 13674.

It is an arithmetic number, because the mean of its divisors is an integer number (4996890).

Almost surely, 2^84530480 is an apocalyptic number.

84530480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84530480 is an abundant number, since it is smaller than the sum of its proper divisors (115345120).

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

84530480 is a wasteful number, since it uses less digits than its factorization.

84530480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17981 (or 17975 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 84530480 is about 9194.0458993851. The cubic root of 84530480 is about 438.8719035840.

The spelling of 84530480 in words is "eighty-four million, five hundred thirty thousand, four hundred eighty".