84559980 has 48 divisors (see below), whose sum is σ = 240791040. Its totient is φ = 22166208.

The previous prime is 84559933. The next prime is 84559987. The reversal of 84559980 is 8995548.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84559987) 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, 8404 + ... + 15483.

It is an arithmetic number, because the mean of its divisors is an integer number (5016480).

Almost surely, 2^84559980 is an apocalyptic number.

It is an amenable number.

84559980 is an abundant number, since it is smaller than the sum of its proper divisors (156231060).

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

84559980 is a wasteful number, since it uses less digits than its factorization.

84559980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23958 (or 23956 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 84559980 is about 9195.6500585875. The cubic root of 84559980 is about 438.9229511090.

The spelling of 84559980 in words is "eighty-four million, five hundred fifty-nine thousand, nine hundred eighty".