816234343 has 2 divisors, whose sum is σ = 816234344. Its totient is φ = 816234342.

The previous prime is 816234337. The next prime is 816234359. The reversal of 816234343 is 343432618.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816234343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 816234299 and 816234308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816234443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408117171 + 408117172.

It is an arithmetic number, because the mean of its divisors is an integer number (408117172).

Almost surely, 2^816234343 is an apocalyptic number.

816234343 is a deficient number, since it is larger than the sum of its proper divisors (1).

816234343 is an equidigital number, since it uses as much as digits as its factorization.

816234343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 816234343 is about 28569.8152426648. The cubic root of 816234343 is about 934.5551919727. Note that the first 3 decimals are identical.

The spelling of 816234343 in words is "eight hundred sixteen million, two hundred thirty-four thousand, three hundred forty-three".