999298667 has 2 divisors, whose sum is σ = 999298668. Its totient is φ = 999298666.

The previous prime is 999298649. The next prime is 999298691. The reversal of 999298667 is 766892999.

999298667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (766892999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999298667 - 2²⁰ = 998250091 is a prime.

It is not a weakly prime, because it can be changed into another prime (999298567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499649333 + 499649334.

It is an arithmetic number, because the mean of its divisors is an integer number (499649334).

Almost surely, 2^999298667 is an apocalyptic number.

999298667 is a deficient number, since it is larger than the sum of its proper divisors (1).

999298667 is an equidigital number, since it uses as much as digits as its factorization.

999298667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 65.

The square root of 999298667 is about 31611.6856083316. The cubic root of 999298667 is about 999.7661676600.

The spelling of 999298667 in words is "nine hundred ninety-nine million, two hundred ninety-eight thousand, six hundred sixty-seven".