86909173 has 8 divisors (see below), whose sum is σ = 98520800. Its totient is φ = 76001328.

The previous prime is 86909161. The next prime is 86909177. The reversal of 86909173 is 37190968.

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

It is not a de Polignac number, because 86909173 - 2¹³ = 86900981 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 (86909177) 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 7 ways as a sum of consecutive naturals, for example, 175683 + ... + 176176.

It is an arithmetic number, because the mean of its divisors is an integer number (12315100).

Almost surely, 2^86909173 is an apocalyptic number.

It is an amenable number.

86909173 is a deficient number, since it is larger than the sum of its proper divisors (11611627).

86909173 is a wasteful number, since it uses less digits than its factorization.

86909173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351891.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 86909173 is about 9322.5089434122. The cubic root of 86909173 is about 442.9505097181.

The spelling of 86909173 in words is "eighty-six million, nine hundred nine thousand, one hundred seventy-three".