8516833397 has 2 divisors, whose sum is σ = 8516833398. Its totient is φ = 8516833396.

The previous prime is 8516833337. The next prime is 8516833427. The reversal of 8516833397 is 7933386158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6572993476 + 1943839921 = 81074^2 + 44089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8516833397 is a prime.

It is a super-2 number, since 2×8516833397² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8516833307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4258416698 + 4258416699.

It is an arithmetic number, because the mean of its divisors is an integer number (4258416699).

Almost surely, 2^8516833397 is an apocalyptic number.

It is an amenable number.

8516833397 is a deficient number, since it is larger than the sum of its proper divisors (1).

8516833397 is an equidigital number, since it uses as much as digits as its factorization.

8516833397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The square root of 8516833397 is about 92286.6913319575. The cubic root of 8516833397 is about 2042.1738806463.

The spelling of 8516833397 in words is "eight billion, five hundred sixteen million, eight hundred thirty-three thousand, three hundred ninety-seven".