8299816861 has 4 divisors (see below), whose sum is σ = 9485504992. Its totient is φ = 7114128732.

The previous prime is 8299816843. The next prime is 8299816879. The reversal of 8299816861 is 1686189928.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (8299816843) and next prime (8299816879).

It is a cyclic number.

It is not a de Polignac number, because 8299816861 - 2¹⁷ = 8299685789 is a prime.

It is a super-2 number, since 2×8299816861² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8299816796 and 8299816805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8299816361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592844055 + ... + 592844068.

It is an arithmetic number, because the mean of its divisors is an integer number (2371376248).

Almost surely, 2^8299816861 is an apocalyptic number.

It is an amenable number.

8299816861 is a deficient number, since it is larger than the sum of its proper divisors (1185688131).

8299816861 is a wasteful number, since it uses less digits than its factorization.

8299816861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185688130.

The product of its digits is 2985984, while the sum is 58.

The square root of 8299816861 is about 91103.3306800580. The cubic root of 8299816861 is about 2024.6789603133.

The spelling of 8299816861 in words is "eight billion, two hundred ninety-nine million, eight hundred sixteen thousand, eight hundred sixty-one".