84590871 has 8 divisors (see below), whose sum is σ = 112902384. Its totient is φ = 56336640.

The previous prime is 84590839. The next prime is 84590879. The reversal of 84590871 is 17809548.

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

It is not a de Polignac number, because 84590871 - 2⁵ = 84590839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84590879) 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 7 ways as a sum of consecutive naturals, for example, 10746 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (14112798).

Almost surely, 2^84590871 is an apocalyptic number.

84590871 is a deficient number, since it is larger than the sum of its proper divisors (28311513).

84590871 is a wasteful number, since it uses less digits than its factorization.

84590871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28641.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 84590871 is about 9197.3295580837. The cubic root of 84590871 is about 438.9763929308.

The spelling of 84590871 in words is "eighty-four million, five hundred ninety thousand, eight hundred seventy-one".