999822203 has 2 divisors, whose sum is σ = 999822204. Its totient is φ = 999822202.

The previous prime is 999822179. The next prime is 999822209. The reversal of 999822203 is 302228999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999822203 - 2⁸ = 999821947 is a prime.

It is a super-2 number, since 2×999822203² = 1999288875223546418, which contains 22 as substring.

It is equal to p_50838938 and since 999822203 and 50838938 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (999822209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499911101 + 499911102.

It is an arithmetic number, because the mean of its divisors is an integer number (499911102).

Almost surely, 2^999822203 is an apocalyptic number.

999822203 is a deficient number, since it is larger than the sum of its proper divisors (1).

999822203 is an equidigital number, since it uses as much as digits as its factorization.

999822203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 999822203 is about 31619.9652593105. The cubic root of 999822203 is about 999.9407308206.

The spelling of 999822203 in words is "nine hundred ninety-nine million, eight hundred twenty-two thousand, two hundred three".