299317387 has 2 divisors, whose sum is σ = 299317388. Its totient is φ = 299317386.

The previous prime is 299317313. The next prime is 299317391. The reversal of 299317387 is 783713992.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-299317387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 299317387.

It is not a weakly prime, because it can be changed into another prime (299317987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149658693 + 149658694.

It is an arithmetic number, because the mean of its divisors is an integer number (149658694).

Almost surely, 2^299317387 is an apocalyptic number.

299317387 is a deficient number, since it is larger than the sum of its proper divisors (1).

299317387 is an equidigital number, since it uses as much as digits as its factorization.

299317387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The square root of 299317387 is about 17300.7915136851. The cubic root of 299317387 is about 668.9248271252.

The spelling of 299317387 in words is "two hundred ninety-nine million, three hundred seventeen thousand, three hundred eighty-seven".