84318994 has 4 divisors (see below), whose sum is σ = 126478494. Its totient is φ = 42159496.

The previous prime is 84318959. The next prime is 84319009. The reversal of 84318994 is 49981348.

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., 64400625 + 19918369 = 8025^2 + 4463^2 .

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 as a sum of consecutive naturals, namely, 21079747 + ... + 21079750.

Almost surely, 2^84318994 is an apocalyptic number.

84318994 is a deficient number, since it is larger than the sum of its proper divisors (42159500).

84318994 is a wasteful number, since it uses less digits than its factorization.

84318994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42159499.

The product of its digits is 248832, while the sum is 46.

The square root of 84318994 is about 9182.5374488754. The cubic root of 84318994 is about 438.5055947855.

The spelling of 84318994 in words is "eighty-four million, three hundred eighteen thousand, nine hundred ninety-four".