84534986 has 4 divisors (see below), whose sum is σ = 126802482. Its totient is φ = 42267492.

The previous prime is 84534941. The next prime is 84534991. The reversal of 84534986 is 68943548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68574961 + 15960025 = 8281^2 + 3995^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84534986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21133745 + ... + 21133748.

Almost surely, 2^84534986 is an apocalyptic number.

84534986 is a deficient number, since it is larger than the sum of its proper divisors (42267496).

84534986 is a wasteful number, since it uses less digits than its factorization.

84534986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42267495.

The product of its digits is 829440, while the sum is 47.

The square root of 84534986 is about 9194.2909460164. The cubic root of 84534986 is about 438.8797016456.

The spelling of 84534986 in words is "eighty-four million, five hundred thirty-four thousand, nine hundred eighty-six".