8216833 has 2 divisors, whose sum is σ = 8216834. Its totient is φ = 8216832.

The previous prime is 8216821. The next prime is 8216839. The reversal of 8216833 is 3386128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5143824 + 3073009 = 2268^2 + 1753^2 .

It is a cyclic number.

It is not a de Polignac number, because 8216833 - 2⁵ = 8216801 is a prime.

It is an Ulam number.

It is equal to p₅₅₃₃₉₆ and since 8216833 and 553396 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 8216795 and 8216804.

It is not a weakly prime, because it can be changed into another prime (8216839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4108416 + 4108417.

It is an arithmetic number, because the mean of its divisors is an integer number (4108417).

Almost surely, 2^8216833 is an apocalyptic number.

It is an amenable number.

8216833 is a deficient number, since it is larger than the sum of its proper divisors (1).

8216833 is an equidigital number, since it uses as much as digits as its factorization.

8216833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 8216833 is about 2866.5018751084. The cubic root of 8216833 is about 201.7908579426.

The spelling of 8216833 in words is "eight million, two hundred sixteen thousand, eight hundred thirty-three".