86271005 has 8 divisors (see below), whose sum is σ = 109615032. Its totient is φ = 64956928.

The previous prime is 86270983. The next prime is 86271007. The reversal of 86271005 is 50017268.

It can be written as a sum of positive squares in 4 ways, for example, as 32878756 + 53392249 = 5734^2 + 7307^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86271005 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 (86271007) 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, 507392 + ... + 507561.

It is an arithmetic number, because the mean of its divisors is an integer number (13701879).

Almost surely, 2^86271005 is an apocalyptic number.

86271005 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86271005 is a deficient number, since it is larger than the sum of its proper divisors (23344027).

86271005 is a wasteful number, since it uses less digits than its factorization.

86271005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014975.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 86271005 is about 9288.2186128450. The cubic root of 86271005 is about 441.8636602345.

The spelling of 86271005 in words is "eighty-six million, two hundred seventy-one thousand, five".