86446705 has 4 divisors (see below), whose sum is σ = 103736052. Its totient is φ = 69157360.

The previous prime is 86446697. The next prime is 86446721. The reversal of 86446705 is 50764468.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21095649 + 65351056 = 4593^2 + 8084^2 .

It is not a de Polignac number, because 86446705 - 2³ = 86446697 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8644666 + ... + 8644675.

It is an arithmetic number, because the mean of its divisors is an integer number (25934013).

Almost surely, 2^86446705 is an apocalyptic number.

It is an amenable number.

86446705 is a deficient number, since it is larger than the sum of its proper divisors (17289347).

86446705 is a wasteful number, since it uses less digits than its factorization.

86446705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17289346.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 86446705 is about 9297.6720204576. The cubic root of 86446705 is about 442.1634241408.

The spelling of 86446705 in words is "eighty-six million, four hundred forty-six thousand, seven hundred five".