80382809 has 8 divisors (see below), whose sum is σ = 89551560. Its totient is φ = 71640576.

The previous prime is 80382791. The next prime is 80382823. The reversal of 80382809 is 90828308.

It can be written as a sum of positive squares in 4 ways, for example, as 2449225 + 77933584 = 1565^2 + 8828^2 .

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 80382809 - 2¹⁶ = 80317273 is a prime.

It is a super-2 number, since 2×80382809² = 12922791965460962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80382829) 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, 106232 + ... + 106985.

It is an arithmetic number, because the mean of its divisors is an integer number (11193945).

Almost surely, 2^80382809 is an apocalyptic number.

It is an amenable number.

80382809 is a deficient number, since it is larger than the sum of its proper divisors (9168751).

80382809 is a wasteful number, since it uses less digits than its factorization.

80382809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213259.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 80382809 is about 8965.6460447644. The cubic root of 80382809 is about 431.5731254970.

The spelling of 80382809 in words is "eighty million, three hundred eighty-two thousand, eight hundred nine".