299718469 has 2 divisors, whose sum is σ = 299718470. Its totient is φ = 299718468.

The previous prime is 299718439. The next prime is 299718479. The reversal of 299718469 is 964817992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299636100 + 82369 = 17310^2 + 287^2 .

It is a cyclic number.

It is not a de Polignac number, because 299718469 - 2¹³ = 299710277 is a prime.

It is a super-2 number, since 2×299718469² = 179662321319407922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299718439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149859234 + 149859235.

It is an arithmetic number, because the mean of its divisors is an integer number (149859235).

Almost surely, 2^299718469 is an apocalyptic number.

It is an amenable number.

299718469 is a deficient number, since it is larger than the sum of its proper divisors (1).

299718469 is an equidigital number, since it uses as much as digits as its factorization.

299718469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 55.

The square root of 299718469 is about 17312.3790681697. The cubic root of 299718469 is about 669.2234777342.

The spelling of 299718469 in words is "two hundred ninety-nine million, seven hundred eighteen thousand, four hundred sixty-nine".