80409073 has 4 divisors (see below), whose sum is σ = 80693488. Its totient is φ = 80124660.

The previous prime is 80409061. The next prime is 80409089. The reversal of 80409073 is 37090408.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80409073 - 2¹⁷ = 80278001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80409013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141783 + ... + 142348.

It is an arithmetic number, because the mean of its divisors is an integer number (20173372).

Almost surely, 2^80409073 is an apocalyptic number.

It is an amenable number.

80409073 is a deficient number, since it is larger than the sum of its proper divisors (284415).

80409073 is a wasteful number, since it uses less digits than its factorization.

80409073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284414.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 80409073 is about 8967.1106271753. The cubic root of 80409073 is about 431.6201239470.

The spelling of 80409073 in words is "eighty million, four hundred nine thousand, seventy-three".