86012805 has 16 divisors (see below), whose sum is σ = 137801664. Its totient is φ = 45813120.

The previous prime is 86012779. The next prime is 86012807. The reversal of 86012805 is 50821068.

It is not a de Polignac number, because 86012805 - 2¹⁰ = 86011781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86012807) 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 15 ways as a sum of consecutive naturals, for example, 9510 + ... + 16200.

It is an arithmetic number, because the mean of its divisors is an integer number (8612604).

Almost surely, 2^86012805 is an apocalyptic number.

It is an amenable number.

86012805 is a deficient number, since it is larger than the sum of its proper divisors (51788859).

86012805 is a wasteful number, since it uses less digits than its factorization.

86012805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 86012805 is about 9274.3088691287. The cubic root of 86012805 is about 441.4224026506.

The spelling of 86012805 in words is "eighty-six million, twelve thousand, eight hundred five".