84681118 has 4 divisors (see below), whose sum is σ = 127021680. Its totient is φ = 42340558.

The previous prime is 84681089. The next prime is 84681133. The reversal of 84681118 is 81118648.

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

It is a congruent number.

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, 21170278 + ... + 21170281.

It is an arithmetic number, because the mean of its divisors is an integer number (31755420).

Almost surely, 2^84681118 is an apocalyptic number.

84681118 is a deficient number, since it is larger than the sum of its proper divisors (42340562).

84681118 is a wasteful number, since it uses less digits than its factorization.

84681118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42340561.

The product of its digits is 12288, while the sum is 37.

The square root of 84681118 is about 9202.2344025785. The cubic root of 84681118 is about 439.1324468958.

The spelling of 84681118 in words is "eighty-four million, six hundred eighty-one thousand, one hundred eighteen".