84449 has 2 divisors, whose sum is σ = 84450. Its totient is φ = 84448.

The previous prime is 84443. The next prime is 84457. The reversal of 84449 is 94448.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53824 + 30625 = 232^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 84449 - 2¹⁶ = 18913 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42224 + 42225.

It is an arithmetic number, because the mean of its divisors is an integer number (42225).

2⁸⁴⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

84449 is a deficient number, since it is larger than the sum of its proper divisors (1).

84449 is an equidigital number, since it uses as much as digits as its factorization.

84449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 84449 is about 290.6011011679. The cubic root of 84449 is about 43.8730846857.

Subtracting 84449 from its reverse (94448), we obtain a palindrome (9999).

The spelling of 84449 in words is "eighty-four thousand, four hundred forty-nine".