299404813 has 2 divisors, whose sum is σ = 299404814. Its totient is φ = 299404812.

The previous prime is 299404783. The next prime is 299404849. The reversal of 299404813 is 318404992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207302404 + 92102409 = 14398^2 + 9597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-299404813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299404873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149702406 + 149702407.

It is an arithmetic number, because the mean of its divisors is an integer number (149702407).

Almost surely, 2^299404813 is an apocalyptic number.

It is an amenable number.

299404813 is a deficient number, since it is larger than the sum of its proper divisors (1).

299404813 is an equidigital number, since it uses as much as digits as its factorization.

299404813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 299404813 is about 17303.3179766194. The cubic root of 299404813 is about 668.9899483327.

The spelling of 299404813 in words is "two hundred ninety-nine million, four hundred four thousand, eight hundred thirteen".