84116571 has 16 divisors (see below), whose sum is σ = 139830528. Its totient is φ = 43696800.

The previous prime is 84116551. The next prime is 84116581. The reversal of 84116571 is 17561148.

It is a happy number.

It is not a de Polignac number, because 84116571 - 2¹⁰ = 84115547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (84116521) 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, 181840 + ... + 182301.

It is an arithmetic number, because the mean of its divisors is an integer number (8739408).

Almost surely, 2^84116571 is an apocalyptic number.

84116571 is a deficient number, since it is larger than the sum of its proper divisors (55713957).

84116571 is a wasteful number, since it uses less digits than its factorization.

84116571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364162.

The product of its digits is 6720, while the sum is 33.

The square root of 84116571 is about 9171.5086545235. The cubic root of 84116571 is about 438.1544096028.

The spelling of 84116571 in words is "eighty-four million, one hundred sixteen thousand, five hundred seventy-one".