84440449 has 2 divisors, whose sum is σ = 84440450. Its totient is φ = 84440448.

The previous prime is 84440413. The next prime is 84440483. The reversal of 84440449 is 94404448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47169424 + 37271025 = 6868^2 + 6105^2 .

It is a cyclic number.

It is not a de Polignac number, because 84440449 - 2⁹ = 84439937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84440849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42220224 + 42220225.

It is an arithmetic number, because the mean of its divisors is an integer number (42220225).

Almost surely, 2^84440449 is an apocalyptic number.

It is an amenable number.

84440449 is a deficient number, since it is larger than the sum of its proper divisors (1).

84440449 is an equidigital number, since it uses as much as digits as its factorization.

84440449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 84440449 is about 9189.1484371513. The cubic root of 84440449 is about 438.7160382584.

The spelling of 84440449 in words is "eighty-four million, four hundred forty thousand, four hundred forty-nine".