84719816 has 8 divisors (see below), whose sum is σ = 158849670. Its totient is φ = 42359904.

The previous prime is 84719813. The next prime is 84719839. The reversal of 84719816 is 61891748.

It can be written as a sum of positive squares in only one way, i.e., 74822500 + 9897316 = 8650^2 + 3146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (84719813) by changing a digit.

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, 5294981 + ... + 5294996.

Almost surely, 2^84719816 is an apocalyptic number.

It is an amenable number.

84719816 is a deficient number, since it is larger than the sum of its proper divisors (74129854).

84719816 is a wasteful number, since it uses less digits than its factorization.

84719816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10589983 (or 10589979 counting only the distinct ones).

The product of its digits is 96768, while the sum is 44.

The square root of 84719816 is about 9204.3368039202. The cubic root of 84719816 is about 439.1993290213.

The spelling of 84719816 in words is "eighty-four million, seven hundred nineteen thousand, eight hundred sixteen".