299220679 has 2 divisors, whose sum is σ = 299220680. Its totient is φ = 299220678.

The previous prime is 299220673. The next prime is 299220769. The reversal of 299220679 is 976022992.

Together with next prime (299220769) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 299220679 - 2³ = 299220671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299220671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149610339 + 149610340.

It is an arithmetic number, because the mean of its divisors is an integer number (149610340).

Almost surely, 2^299220679 is an apocalyptic number.

299220679 is a deficient number, since it is larger than the sum of its proper divisors (1).

299220679 is an equidigital number, since it uses as much as digits as its factorization.

299220679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 299220679 is about 17297.9963868652. The cubic root of 299220679 is about 668.8527772396.

The spelling of 299220679 in words is "two hundred ninety-nine million, two hundred twenty thousand, six hundred seventy-nine".