84118980 has 48 divisors (see below), whose sum is σ = 256947264. Its totient is φ = 20392320.

The previous prime is 84118933. The next prime is 84118997. The reversal of 84118980 is 8981148.

It is a happy number.

It is an unprimeable number.

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, 63067 + ... + 64386.

It is an arithmetic number, because the mean of its divisors is an integer number (5353068).

Almost surely, 2^84118980 is an apocalyptic number.

It is an amenable number.

84118980 is an abundant number, since it is smaller than the sum of its proper divisors (172828284).

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

84118980 is a wasteful number, since it uses less digits than its factorization.

84118980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127476 (or 127474 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 84118980 is about 9171.6399842122. The cubic root of 84118980 is about 438.1585923058.

It can be divided in two parts, 8411 and 8980, that added together give a triangular number (17391 = T₁₈₆).

The spelling of 84118980 in words is "eighty-four million, one hundred eighteen thousand, nine hundred eighty".