84343423 has 2 divisors, whose sum is σ = 84343424. Its totient is φ = 84343422.

The previous prime is 84343411. The next prime is 84343429. The reversal of 84343423 is 32434348.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84343423 - 2⁹ = 84342911 is a prime.

It is a super-2 number, since 2×84343423² = 14227626006713858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84343429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42171711 + 42171712.

It is an arithmetic number, because the mean of its divisors is an integer number (42171712).

Almost surely, 2^84343423 is an apocalyptic number.

84343423 is a deficient number, since it is larger than the sum of its proper divisors (1).

84343423 is an equidigital number, since it uses as much as digits as its factorization.

84343423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 31.

The square root of 84343423 is about 9183.8675404211. The cubic root of 84343423 is about 438.5479388186.

The spelling of 84343423 in words is "eighty-four million, three hundred forty-three thousand, four hundred twenty-three".