999948269 has 2 divisors, whose sum is σ = 999948270. Its totient is φ = 999948268.

The previous prime is 999948263. The next prime is 999948289. The reversal of 999948269 is 962849999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 675480100 + 324468169 = 25990^2 + 18013^2 .

It is a cyclic number.

It is not a de Polignac number, because 999948269 - 2¹² = 999944173 is a prime.

It is a super-2 number, since 2×999948269² = 1999793081352192722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999948263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499974134 + 499974135.

It is an arithmetic number, because the mean of its divisors is an integer number (499974135).

Almost surely, 2^999948269 is an apocalyptic number.

It is an amenable number.

999948269 is a deficient number, since it is larger than the sum of its proper divisors (1).

999948269 is an equidigital number, since it uses as much as digits as its factorization.

999948269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22674816, while the sum is 65.

The square root of 999948269 is about 31621.9586521771. The cubic root of 999948269 is about 999.9827560360.

The spelling of 999948269 in words is "nine hundred ninety-nine million, nine hundred forty-eight thousand, two hundred sixty-nine".