80447 has 2 divisors, whose sum is σ = 80448. Its totient is φ = 80446.

The previous prime is 80429. The next prime is 80449. The reversal of 80447 is 74408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80447 - 2⁸ = 80191 is a prime.

Together with 80449, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80449) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40223 + 40224.

It is an arithmetic number, because the mean of its divisors is an integer number (40224).

2⁸⁰⁴⁴⁷ is an apocalyptic number.

80447 is a deficient number, since it is larger than the sum of its proper divisors (1).

80447 is an equidigital number, since it uses as much as digits as its factorization.

80447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 80447 is about 283.6318035764. The cubic root of 80447 is about 43.1687974845.

The spelling of 80447 in words is "eighty thousand, four hundred forty-seven".