86670609 has 8 divisors (see below), whose sum is σ = 121643040. Its totient is φ = 54739296.

The previous prime is 86670599. The next prime is 86670667. The reversal of 86670609 is 90607668.

It is a happy number.

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

It is not a de Polignac number, because 86670609 - 2¹³ = 86662417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86671609) 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 7 ways as a sum of consecutive naturals, for example, 760212 + ... + 760325.

It is an arithmetic number, because the mean of its divisors is an integer number (15205380).

Almost surely, 2^86670609 is an apocalyptic number.

It is an amenable number.

86670609 is a deficient number, since it is larger than the sum of its proper divisors (34972431).

86670609 is a wasteful number, since it uses less digits than its factorization.

86670609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520559.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 86670609 is about 9309.7050973702. The cubic root of 86670609 is about 442.5448414451.

The spelling of 86670609 in words is "eighty-six million, six hundred seventy thousand, six hundred nine".