84252449 has 2 divisors, whose sum is σ = 84252450. Its totient is φ = 84252448.

The previous prime is 84252431. The next prime is 84252463. The reversal of 84252449 is 94425248.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84180625 + 71824 = 9175^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 84252449 - 2⁸ = 84252193 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (84252419) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42126224 + 42126225.

It is an arithmetic number, because the mean of its divisors is an integer number (42126225).

Almost surely, 2^84252449 is an apocalyptic number.

It is an amenable number.

84252449 is a deficient number, since it is larger than the sum of its proper divisors (1).

84252449 is an equidigital number, since it uses as much as digits as its factorization.

84252449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 38.

The square root of 84252449 is about 9178.9132799041. The cubic root of 84252449 is about 438.3902074403.

The spelling of 84252449 in words is "eighty-four million, two hundred fifty-two thousand, four hundred forty-nine".