84287986 has 8 divisors (see below), whose sum is σ = 126524160. Its totient is φ = 42113268.

The previous prime is 84287981. The next prime is 84287993. The reversal of 84287986 is 68978248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (84287981) 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, 11766 + ... + 17521.

It is an arithmetic number, because the mean of its divisors is an integer number (15815520).

Almost surely, 2^84287986 is an apocalyptic number.

84287986 is a deficient number, since it is larger than the sum of its proper divisors (42236174).

84287986 is a wasteful number, since it uses less digits than its factorization.

84287986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30728.

The product of its digits is 1548288, while the sum is 52.

The square root of 84287986 is about 9180.8488714280. The cubic root of 84287986 is about 438.4518352550.

The spelling of 84287986 in words is "eighty-four million, two hundred eighty-seven thousand, nine hundred eighty-six".