84255449 has 2 divisors, whose sum is σ = 84255450. Its totient is φ = 84255448.

The previous prime is 84255439. The next prime is 84255467. The reversal of 84255449 is 94455248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74995600 + 9259849 = 8660^2 + 3043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84255449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_4902998 and since 84255449 and 4902998 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (84255419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42127724 + 42127725.

It is an arithmetic number, because the mean of its divisors is an integer number (42127725).

Almost surely, 2^84255449 is an apocalyptic number.

It is an amenable number.

84255449 is a deficient number, since it is larger than the sum of its proper divisors (1).

84255449 is an equidigital number, since it uses as much as digits as its factorization.

84255449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 41.

The square root of 84255449 is about 9179.0766964875. The cubic root of 84255449 is about 438.3954106719.

The spelling of 84255449 in words is "eighty-four million, two hundred fifty-five thousand, four hundred forty-nine".