84380566 has 8 divisors (see below), whose sum is σ = 126734040. Its totient is φ = 42135888.

The previous prime is 84380563. The next prime is 84380573. The reversal of 84380566 is 66508348.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84380563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25231 + ... + 28378.

It is an arithmetic number, because the mean of its divisors is an integer number (15841755).

Almost surely, 2^84380566 is an apocalyptic number.

84380566 is a deficient number, since it is larger than the sum of its proper divisors (42353474).

84380566 is a wasteful number, since it uses less digits than its factorization.

84380566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54398.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 84380566 is about 9185.8895051051. The cubic root of 84380566 is about 438.6123050133.

The spelling of 84380566 in words is "eighty-four million, three hundred eighty thousand, five hundred sixty-six".