80449 has 2 divisors, whose sum is σ = 80450. Its totient is φ = 80448.

The previous prime is 80447. The next prime is 80471. The reversal of 80449 is 94408.

80449 is nontrivially palindromic in base 6.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66049 + 14400 = 257^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 80449 - 2¹ = 80447 is a prime.

Together with 80447, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (80447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40224 + 40225.

It is an arithmetic number, because the mean of its divisors is an integer number (40225).

2⁸⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

80449 is a deficient number, since it is larger than the sum of its proper divisors (1).

80449 is an equidigital number, since it uses as much as digits as its factorization.

80449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 80449 is about 283.6353292522. The cubic root of 80449 is about 43.1691552226.

Subtracting from 80449 its product of nonzero digits (1152), we obtain a palindrome (79297).

It can be divided in two parts, 80 and 449, that added together give a square (529 = 23²).

The spelling of 80449 in words is "eighty thousand, four hundred forty-nine".