80328909 has 8 divisors (see below), whose sum is σ = 107149600. Its totient is φ = 53530416.

The previous prime is 80328863. The next prime is 80328923. The reversal of 80328909 is 90982308.

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

It is not a de Polignac number, because 80328909 - 2⁸ = 80328653 is a prime.

It is a super-2 number, since 2×80328909² = 12905467242260562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80328929) 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, 6867 + ... + 14415.

It is an arithmetic number, because the mean of its divisors is an integer number (13393700).

Almost surely, 2^80328909 is an apocalyptic number.

It is an amenable number.

80328909 is a deficient number, since it is larger than the sum of its proper divisors (26820691).

80328909 is a wasteful number, since it uses less digits than its factorization.

80328909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11099.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 80328909 is about 8962.6396223434. The cubic root of 80328909 is about 431.4766413813.

The spelling of 80328909 in words is "eighty million, three hundred twenty-eight thousand, nine hundred nine".