84986988 has 12 divisors (see below), whose sum is σ = 198303000. Its totient is φ = 28328992.

The previous prime is 84986987. The next prime is 84986989. The reversal of 84986988 is 88968948.

It is an interprime number because it is at equal distance from previous prime (84986987) and next prime (84986989).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (84986987) 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 3 ways as a sum of consecutive naturals, for example, 3541113 + ... + 3541136.

It is an arithmetic number, because the mean of its divisors is an integer number (16525250).

Almost surely, 2^84986988 is an apocalyptic number.

It is an amenable number.

84986988 is an abundant number, since it is smaller than the sum of its proper divisors (113316012).

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

84986988 is a wasteful number, since it uses less digits than its factorization.

84986988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082256 (or 7082254 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 60.

The square root of 84986988 is about 9218.8387555049. The cubic root of 84986988 is about 439.6605301698.

The spelling of 84986988 in words is "eighty-four million, nine hundred eighty-six thousand, nine hundred eighty-eight".