80564273 has 4 divisors (see below), whose sum is σ = 80584560. Its totient is φ = 80543988.

The previous prime is 80564269. The next prime is 80564317. The reversal of 80564273 is 37246508.

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 80564273 - 2² = 80564269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80564203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015 + ... + 12852.

It is an arithmetic number, because the mean of its divisors is an integer number (20146140).

Almost surely, 2^80564273 is an apocalyptic number.

It is an amenable number.

80564273 is a deficient number, since it is larger than the sum of its proper divisors (20287).

80564273 is a wasteful number, since it uses less digits than its factorization.

80564273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20286.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 80564273 is about 8975.7603020580. The cubic root of 80564273 is about 431.8976398572.

The spelling of 80564273 in words is "eighty million, five hundred sixty-four thousand, two hundred seventy-three".