84326447 has 2 divisors, whose sum is σ = 84326448. Its totient is φ = 84326446.

The previous prime is 84326419. The next prime is 84326471. The reversal of 84326447 is 74462348.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84326447 - 2⁸ = 84326191 is a prime.

It is a super-2 number, since 2×84326447² = 14221899327287618, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84326447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84326497) 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, 42163223 + 42163224.

It is an arithmetic number, because the mean of its divisors is an integer number (42163224).

Almost surely, 2^84326447 is an apocalyptic number.

84326447 is a deficient number, since it is larger than the sum of its proper divisors (1).

84326447 is an equidigital number, since it uses as much as digits as its factorization.

84326447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 38.

The square root of 84326447 is about 9182.9432645530. The cubic root of 84326447 is about 438.5185143178.

The spelling of 84326447 in words is "eighty-four million, three hundred twenty-six thousand, four hundred forty-seven".