80216609 has 8 divisors (see below), whose sum is σ = 87875040. Its totient is φ = 72619200.

The previous prime is 80216597. The next prime is 80216611. The reversal of 80216609 is 90661208.

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 80216609 - 2¹² = 80212513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80216009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12479 + ... + 17780.

It is an arithmetic number, because the mean of its divisors is an integer number (10984380).

Almost surely, 2^80216609 is an apocalyptic number.

It is an amenable number.

80216609 is a deficient number, since it is larger than the sum of its proper divisors (7658431).

80216609 is a wasteful number, since it uses less digits than its factorization.

80216609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30511.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 80216609 is about 8956.3725357982. The cubic root of 80216609 is about 431.2754791639.

The spelling of 80216609 in words is "eighty million, two hundred sixteen thousand, six hundred nine".