8223892849 has 2 divisors, whose sum is σ = 8223892850. Its totient is φ = 8223892848.

The previous prime is 8223892843. The next prime is 8223892879. The reversal of 8223892849 is 9482983228.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8170894449 + 52998400 = 90393^2 + 7280^2 .

It is a cyclic number.

It is not a de Polignac number, because 8223892849 - 2³ = 8223892841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8223892849.

It is not a weakly prime, because it can be changed into another prime (8223892841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4111946424 + 4111946425.

It is an arithmetic number, because the mean of its divisors is an integer number (4111946425).

Almost surely, 2^8223892849 is an apocalyptic number.

It is an amenable number.

8223892849 is a deficient number, since it is larger than the sum of its proper divisors (1).

8223892849 is an equidigital number, since it uses as much as digits as its factorization.

8223892849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 55.

The square root of 8223892849 is about 90685.6816096124. The cubic root of 8223892849 is about 2018.4863385920.

The spelling of 8223892849 in words is "eight billion, two hundred twenty-three million, eight hundred ninety-two thousand, eight hundred forty-nine".