84500871 has 32 divisors (see below), whose sum is σ = 140141568. Its totient is φ = 44098560.

The previous prime is 84500851. The next prime is 84500879. The reversal of 84500871 is 17800548.

It is a happy number.

It is not a de Polignac number, because 84500871 - 2⁷ = 84500743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84500879) 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 31 ways as a sum of consecutive naturals, for example, 24886 + ... + 28076.

It is an arithmetic number, because the mean of its divisors is an integer number (4379424).

Almost surely, 2^84500871 is an apocalyptic number.

84500871 is a deficient number, since it is larger than the sum of its proper divisors (55640697).

84500871 is a wasteful number, since it uses less digits than its factorization.

84500871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 84500871 is about 9192.4355314574. The cubic root of 84500871 is about 438.8206554989.

The spelling of 84500871 in words is "eighty-four million, five hundred thousand, eight hundred seventy-one".