84519844 has 6 divisors (see below), whose sum is σ = 147909734. Its totient is φ = 42259920.

The previous prime is 84519839. The next prime is 84519881. The reversal of 84519844 is 44891548.

It can be written as a sum of positive squares in only one way, i.e., 83942244 + 577600 = 9162^2 + 760^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84519844.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10564977 + ... + 10564984.

Almost surely, 2^84519844 is an apocalyptic number.

It is an amenable number.

84519844 is a deficient number, since it is larger than the sum of its proper divisors (63389890).

84519844 is a wasteful number, since it uses less digits than its factorization.

84519844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21129965 (or 21129963 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 84519844 is about 9193.4674633677. The cubic root of 84519844 is about 438.8534958753.

The spelling of 84519844 in words is "eighty-four million, five hundred nineteen thousand, eight hundred forty-four".