84869816 has 32 divisors (see below), whose sum is σ = 171417600. Its totient is φ = 39277920.

The previous prime is 84869783. The next prime is 84869819. The reversal of 84869816 is 61896848.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84869819) 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 in 7 ways as a sum of consecutive naturals, for example, 1736 + ... + 13143.

It is an arithmetic number, because the mean of its divisors is an integer number (5356800).

Almost surely, 2^84869816 is an apocalyptic number.

It is an amenable number.

84869816 is an abundant number, since it is smaller than the sum of its proper divisors (86547784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84869816 is a wasteful number, since it uses less digits than its factorization.

84869816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14939 (or 14935 counting only the distinct ones).

The product of its digits is 663552, while the sum is 50.

The square root of 84869816 is about 9212.4815332244. The cubic root of 84869816 is about 439.4583831585.

The spelling of 84869816 in words is "eighty-four million, eight hundred sixty-nine thousand, eight hundred sixteen".