816234823 has 2 divisors, whose sum is σ = 816234824. Its totient is φ = 816234822.

The previous prime is 816234817. The next prime is 816234829. The reversal of 816234823 is 328432618.

It is a balanced prime because it is at equal distance from previous prime (816234817) and next prime (816234829).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816234823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816234829) 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, 408117411 + 408117412.

It is an arithmetic number, because the mean of its divisors is an integer number (408117412).

Almost surely, 2^816234823 is an apocalyptic number.

816234823 is a deficient number, since it is larger than the sum of its proper divisors (1).

816234823 is an equidigital number, since it uses as much as digits as its factorization.

816234823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The square root of 816234823 is about 28569.8236431379. The cubic root of 816234823 is about 934.5553751662. Note that the first 3 decimals are identical.

The spelling of 816234823 in words is "eight hundred sixteen million, two hundred thirty-four thousand, eight hundred twenty-three".