86800005 has 40 divisors (see below), whose sum is σ = 157129632. Its totient is φ = 45837792.

The previous prime is 86800001. The next prime is 86800073. The reversal of 86800005 is 50000868.

It is not a de Polignac number, because 86800005 - 2² = 86800001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86800001) 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 39 ways as a sum of consecutive naturals, for example, 42334 + ... + 44336.

Almost surely, 2^86800005 is an apocalyptic number.

It is an amenable number.

86800005 is a deficient number, since it is larger than the sum of its proper divisors (70329627).

86800005 is a wasteful number, since it uses less digits than its factorization.

With its successor (86800006) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (2127).

86800005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 86800005 is about 9316.6520274184. The cubic root of 86800005 is about 442.7649662723.

The spelling of 86800005 in words is "eighty-six million, eight hundred thousand, five".