80669585 has 8 divisors (see below), whose sum is σ = 97021800. Its totient is φ = 64390144.

The previous prime is 80669543. The next prime is 80669593. The reversal of 80669585 is 58596608.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17673616 + 62995969 = 4204^2 + 7937^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 80669585 - 2¹⁴ = 80653201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15722 + ... + 20211.

It is an arithmetic number, because the mean of its divisors is an integer number (12127725).

Almost surely, 2^80669585 is an apocalyptic number.

It is an amenable number.

80669585 is a deficient number, since it is larger than the sum of its proper divisors (16352215).

80669585 is a wasteful number, since it uses less digits than its factorization.

80669585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36387.

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 80669585 is about 8981.6248529985. The cubic root of 80669585 is about 432.0857472251.

The spelling of 80669585 in words is "eighty million, six hundred sixty-nine thousand, five hundred eighty-five".