80648809 has 8 divisors (see below), whose sum is σ = 82172160. Its totient is φ = 79138176.

The previous prime is 80648759. The next prime is 80648837. The reversal of 80648809 is 90884608.

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 80648809 - 2¹⁹ = 80124521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80648849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10137 + ... + 16249.

It is an arithmetic number, because the mean of its divisors is an integer number (10271520).

Almost surely, 2^80648809 is an apocalyptic number.

It is an amenable number.

80648809 is a deficient number, since it is larger than the sum of its proper divisors (1523351).

80648809 is a wasteful number, since it uses less digits than its factorization.

80648809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 80648809 is about 8980.4681949217. The cubic root of 80648809 is about 432.0486502851.

The spelling of 80648809 in words is "eighty million, six hundred forty-eight thousand, eight hundred nine".