816234443 has 2 divisors, whose sum is σ = 816234444. Its totient is φ = 816234442.

The previous prime is 816234431. The next prime is 816234457. The reversal of 816234443 is 344432618.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 816234443 - 2⁴ = 816234427 is a prime.

It is not a weakly prime, because it can be changed into another prime (816234343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408117221 + 408117222.

It is an arithmetic number, because the mean of its divisors is an integer number (408117222).

Almost surely, 2^816234443 is an apocalyptic number.

816234443 is a deficient number, since it is larger than the sum of its proper divisors (1).

816234443 is an equidigital number, since it uses as much as digits as its factorization.

816234443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 35.

The square root of 816234443 is about 28569.8169927635. The cubic root of 816234443 is about 934.5552301380. Note that the first 3 decimals are identical.

The spelling of 816234443 in words is "eight hundred sixteen million, two hundred thirty-four thousand, four hundred forty-three".