86605441 has 4 divisors (see below), whose sum is σ = 93267412. Its totient is φ = 79943472.

The previous prime is 86605433. The next prime is 86605447. The reversal of 86605441 is 14450668.

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 53875600 + 32729841 = 7340^2 + 5721^2 .

It is a cyclic number.

It is not a de Polignac number, because 86605441 - 2³ = 86605433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86605397 and 86605406.

It is not an unprimeable number, because it can be changed into a prime (86605447) 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 3 ways as a sum of consecutive naturals, for example, 3330966 + ... + 3330991.

It is an arithmetic number, because the mean of its divisors is an integer number (23316853).

Almost surely, 2^86605441 is an apocalyptic number.

It is an amenable number.

86605441 is a deficient number, since it is larger than the sum of its proper divisors (6661971).

86605441 is a wasteful number, since it uses less digits than its factorization.

86605441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661970.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 86605441 is about 9306.2044357515. The cubic root of 86605441 is about 442.4338965168.

The spelling of 86605441 in words is "eighty-six million, six hundred five thousand, four hundred forty-one".