86471589 has 4 divisors (see below), whose sum is σ = 115295456. Its totient is φ = 57647724.

The previous prime is 86471573. The next prime is 86471597. The reversal of 86471589 is 98517468.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 86471589 - 2⁴ = 86471573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86471089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14411929 + ... + 14411934.

It is an arithmetic number, because the mean of its divisors is an integer number (28823864).

Almost surely, 2^86471589 is an apocalyptic number.

It is an amenable number.

86471589 is a deficient number, since it is larger than the sum of its proper divisors (28823867).

86471589 is a wasteful number, since it uses less digits than its factorization.

86471589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28823866.

The product of its digits is 483840, while the sum is 48.

The square root of 86471589 is about 9299.0101086083. The cubic root of 86471589 is about 442.2058461899.

The spelling of 86471589 in words is "eighty-six million, four hundred seventy-one thousand, five hundred eighty-nine".