84891718 has 16 divisors (see below), whose sum is σ = 132143616. Its totient is φ = 40871880.

The previous prime is 84891679. The next prime is 84891731. The reversal of 84891718 is 81719848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846 + ... + 13057.

It is an arithmetic number, because the mean of its divisors is an integer number (8258976).

Almost surely, 2^84891718 is an apocalyptic number.

84891718 is a deficient number, since it is larger than the sum of its proper divisors (47251898).

84891718 is a wasteful number, since it uses less digits than its factorization.

84891718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14019.

The product of its digits is 129024, while the sum is 46.

The square root of 84891718 is about 9213.6701699160. The cubic root of 84891718 is about 439.4961829721.

The spelling of 84891718 in words is "eighty-four million, eight hundred ninety-one thousand, seven hundred eighteen".