84316565 has 4 divisors (see below), whose sum is σ = 101179884. Its totient is φ = 67453248.

The previous prime is 84316537. The next prime is 84316607. The reversal of 84316565 is 56561348.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15476356 + 68840209 = 3934^2 + 8297^2 .

It is a cyclic number.

It is not a de Polignac number, because 84316565 - 2¹⁶ = 84251029 is a prime.

It is a Duffinian number.

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 in 3 ways as a sum of consecutive naturals, for example, 8431652 + ... + 8431661.

It is an arithmetic number, because the mean of its divisors is an integer number (25294971).

Almost surely, 2^84316565 is an apocalyptic number.

It is an amenable number.

84316565 is a deficient number, since it is larger than the sum of its proper divisors (16863319).

84316565 is a wasteful number, since it uses less digits than its factorization.

84316565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16863318.

The product of its digits is 86400, while the sum is 38.

The square root of 84316565 is about 9182.4051860066. The cubic root of 84316565 is about 438.5013840287.

The spelling of 84316565 in words is "eighty-four million, three hundred sixteen thousand, five hundred sixty-five".