84229459 has 2 divisors, whose sum is σ = 84229460. Its totient is φ = 84229458.

The previous prime is 84229447. The next prime is 84229477. The reversal of 84229459 is 95492248.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84229459 - 2⁷ = 84229331 is a prime.

It is not a weakly prime, because it can be changed into another prime (84229429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42114729 + 42114730.

It is an arithmetic number, because the mean of its divisors is an integer number (42114730).

Almost surely, 2^84229459 is an apocalyptic number.

84229459 is a deficient number, since it is larger than the sum of its proper divisors (1).

84229459 is an equidigital number, since it uses as much as digits as its factorization.

84229459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 84229459 is about 9177.6608675632. The cubic root of 84229459 is about 438.3503292415.

The spelling of 84229459 in words is "eighty-four million, two hundred twenty-nine thousand, four hundred fifty-nine".