999722299 has 2 divisors, whose sum is σ = 999722300. Its totient is φ = 999722298.

The previous prime is 999722261. The next prime is 999722357. The reversal of 999722299 is 992227999.

It is an a-pointer prime, because the next prime (999722357) can be obtained adding 999722299 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999722299 - 2¹⁵ = 999689531 is a prime.

It is not a weakly prime, because it can be changed into another prime (999722099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499861149 + 499861150.

It is an arithmetic number, because the mean of its divisors is an integer number (499861150).

Almost surely, 2^999722299 is an apocalyptic number.

999722299 is a deficient number, since it is larger than the sum of its proper divisors (1).

999722299 is an equidigital number, since it uses as much as digits as its factorization.

999722299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3306744, while the sum is 58.

The square root of 999722299 is about 31618.3854584639. The cubic root of 999722299 is about 999.9074244300.

The spelling of 999722299 in words is "nine hundred ninety-nine million, seven hundred twenty-two thousand, two hundred ninety-nine".