80065909 has 8 divisors (see below), whose sum is σ = 99822528. Its totient is φ = 62388960.

The previous prime is 80065883. The next prime is 80065927. The reversal of 80065909 is 90956008.

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 80065909 - 2⁵ = 80065877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80065939) 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, 519832 + ... + 519985.

It is an arithmetic number, because the mean of its divisors is an integer number (12477816).

Almost surely, 2^80065909 is an apocalyptic number.

It is an amenable number.

80065909 is a deficient number, since it is larger than the sum of its proper divisors (19756619).

80065909 is a wasteful number, since it uses less digits than its factorization.

80065909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039835.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 80065909 is about 8947.9555765549. The cubic root of 80065909 is about 431.0052360552.

The spelling of 80065909 in words is "eighty million, sixty-five thousand, nine hundred nine".