84540660 has 48 divisors (see below), whose sum is σ = 250641216. Its totient is φ = 21217792.

The previous prime is 84540637. The next prime is 84540697. The reversal of 84540660 is 6604548.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40422 + ... + 42461.

It is an arithmetic number, because the mean of its divisors is an integer number (5221692).

Almost surely, 2^84540660 is an apocalyptic number.

It is an amenable number.

84540660 is an abundant number, since it is smaller than the sum of its proper divisors (166100556).

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

84540660 is a wasteful number, since it uses less digits than its factorization.

84540660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82912 (or 82910 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 84540660 is about 9194.5995018815. The cubic root of 84540660 is about 438.8895206481.

The spelling of 84540660 in words is "eighty-four million, five hundred forty thousand, six hundred sixty".