84320566 has 16 divisors (see below), whose sum is σ = 138498048. Its totient is φ = 38183400.

The previous prime is 84320563. The next prime is 84320567. The reversal of 84320566 is 66502348.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84320563) 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, 1110 + ... + 13033.

It is an arithmetic number, because the mean of its divisors is an integer number (8656128).

Almost surely, 2^84320566 is an apocalyptic number.

84320566 is a deficient number, since it is larger than the sum of its proper divisors (54177482).

84320566 is a wasteful number, since it uses less digits than its factorization.

84320566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14427.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 84320566 is about 9182.6230457315. The cubic root of 84320566 is about 438.5083198595.

The spelling of 84320566 in words is "eighty-four million, three hundred twenty thousand, five hundred sixty-six".