4999823 has 2 divisors, whose sum is σ = 4999824. Its totient is φ = 4999822.

The previous prime is 4999801. The next prime is 4999849. The reversal of 4999823 is 3289994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4999823 - 2⁶ = 4999759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4999523) 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, 2499911 + 2499912.

It is an arithmetic number, because the mean of its divisors is an integer number (2499912).

Almost surely, 2^4999823 is an apocalyptic number.

4999823 is a deficient number, since it is larger than the sum of its proper divisors (1).

4999823 is an equidigital number, since it uses as much as digits as its factorization.

4999823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 4999823 is about 2236.0283987463. The cubic root of 4999823 is about 170.9955768722.

The spelling of 4999823 in words is "four million, nine hundred ninety-nine thousand, eight hundred twenty-three".