84559665 has 16 divisors (see below), whose sum is σ = 135520128. Its totient is φ = 45023616.

The previous prime is 84559663. The next prime is 84559667. The reversal of 84559665 is 56695548.

It is an interprime number because it is at equal distance from previous prime (84559663) and next prime (84559667).

It is not a de Polignac number, because 84559665 - 2¹ = 84559663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84559663) 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 15 ways as a sum of consecutive naturals, for example, 5349 + ... + 14061.

It is an arithmetic number, because the mean of its divisors is an integer number (8470008).

Almost surely, 2^84559665 is an apocalyptic number.

It is an amenable number.

84559665 is a deficient number, since it is larger than the sum of its proper divisors (50960463).

84559665 is a wasteful number, since it uses less digits than its factorization.

84559665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9368.

The product of its digits is 1296000, while the sum is 48.

The square root of 84559665 is about 9195.6329309080. The cubic root of 84559665 is about 438.9224060880.

The spelling of 84559665 in words is "eighty-four million, five hundred fifty-nine thousand, six hundred sixty-five".