8216893 has 2 divisors, whose sum is σ = 8216894. Its totient is φ = 8216892.

The previous prime is 8216863. The next prime is 8216921. The reversal of 8216893 is 3986128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8139609 + 77284 = 2853^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 8216893 - 2¹⁷ = 8085821 is a prime.

8216893 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8216833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4108446 + 4108447.

It is an arithmetic number, because the mean of its divisors is an integer number (4108447).

Almost surely, 2^8216893 is an apocalyptic number.

It is an amenable number.

8216893 is a deficient number, since it is larger than the sum of its proper divisors (1).

8216893 is an equidigital number, since it uses as much as digits as its factorization.

8216893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 8216893 is about 2866.5123408072. The cubic root of 8216893 is about 201.7913491059.

The spelling of 8216893 in words is "eight million, two hundred sixteen thousand, eight hundred ninety-three".