999776233 has 2 divisors, whose sum is σ = 999776234. Its totient is φ = 999776232.

The previous prime is 999776191. The next prime is 999776237. The reversal of 999776233 is 332677999.

It is the 12909-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 731864809 + 267911424 = 27053^2 + 16368^2 .

It is a cyclic number.

It is not a de Polignac number, because 999776233 - 2¹⁷ = 999645161 is a prime.

It is not a weakly prime, because it can be changed into another prime (999776237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499888116 + 499888117.

It is an arithmetic number, because the mean of its divisors is an integer number (499888117).

Almost surely, 2^999776233 is an apocalyptic number.

It is an amenable number.

999776233 is a deficient number, since it is larger than the sum of its proper divisors (1).

999776233 is an equidigital number, since it uses as much as digits as its factorization.

999776233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3857868, while the sum is 55.

The square root of 999776233 is about 31619.2383368101. The cubic root of 999776233 is about 999.9254054358.

The spelling of 999776233 in words is "nine hundred ninety-nine million, seven hundred seventy-six thousand, two hundred thirty-three".