84058871 has 4 divisors (see below), whose sum is σ = 90524952. Its totient is φ = 77592792.

The previous prime is 84058867. The next prime is 84058903. The reversal of 84058871 is 17885048.

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

It is a cyclic number.

It is not a de Polignac number, because 84058871 - 2² = 84058867 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 (84058811) 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, 3233021 + ... + 3233046.

It is an arithmetic number, because the mean of its divisors is an integer number (22631238).

Almost surely, 2^84058871 is an apocalyptic number.

84058871 is a deficient number, since it is larger than the sum of its proper divisors (6466081).

84058871 is a wasteful number, since it uses less digits than its factorization.

84058871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6466080.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 84058871 is about 9168.3625037408. The cubic root of 84058871 is about 438.0542022676.

The spelling of 84058871 in words is "eighty-four million, fifty-eight thousand, eight hundred seventy-one".