84571167 has 4 divisors (see below), whose sum is σ = 112761560. Its totient is φ = 56380776.

The previous prime is 84571139. The next prime is 84571169. The reversal of 84571167 is 76117548.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84571167 - 2²⁶ = 17462303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84571169) 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, 14095192 + ... + 14095197.

It is an arithmetic number, because the mean of its divisors is an integer number (28190390).

Almost surely, 2^84571167 is an apocalyptic number.

84571167 is a deficient number, since it is larger than the sum of its proper divisors (28190393).

84571167 is a wasteful number, since it uses less digits than its factorization.

84571167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28190392.

The product of its digits is 47040, while the sum is 39.

The square root of 84571167 is about 9196.2583152062. The cubic root of 84571167 is about 438.9423062639.

The spelling of 84571167 in words is "eighty-four million, five hundred seventy-one thousand, one hundred sixty-seven".