8434823 has 2 divisors, whose sum is σ = 8434824. Its totient is φ = 8434822.

The previous prime is 8434819. The next prime is 8434843. The reversal of 8434823 is 3284348.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8434823 - 2² = 8434819 is a prime.

It is a super-2 number, since 2×8434823² = 142292478082658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8434823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8434843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4217411 + 4217412.

It is an arithmetic number, because the mean of its divisors is an integer number (4217412).

Almost surely, 2^8434823 is an apocalyptic number.

8434823 is a deficient number, since it is larger than the sum of its proper divisors (1).

8434823 is an equidigital number, since it uses as much as digits as its factorization.

8434823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 32.

The square root of 8434823 is about 2904.2766741480. The cubic root of 8434823 is about 203.5597886088.

The spelling of 8434823 in words is "eight million, four hundred thirty-four thousand, eight hundred twenty-three".