84084986 has 8 divisors (see below), whose sum is σ = 126256980. Its totient is φ = 41999328.

The previous prime is 84084943. The next prime is 84084991. The reversal of 84084986 is 68948048.

It can be written as a sum of positive squares in 2 ways, for example, as 62173225 + 21911761 = 7885^2 + 4681^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84084986.

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 3 ways as a sum of consecutive naturals, for example, 19091 + ... + 23078.

Almost surely, 2^84084986 is an apocalyptic number.

84084986 is a deficient number, since it is larger than the sum of its proper divisors (42171994).

84084986 is a wasteful number, since it uses less digits than its factorization.

84084986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43168.

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 84084986 is about 9169.7865842123. The cubic root of 84084986 is about 438.0995617514.

The spelling of 84084986 in words is "eighty-four million, eighty-four thousand, nine hundred eighty-six".