299428807 has 2 divisors, whose sum is σ = 299428808. Its totient is φ = 299428806.

The previous prime is 299428793. The next prime is 299428861. The reversal of 299428807 is 708824992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 299428807 - 2¹⁹ = 298904519 is a prime.

It is a super-2 number, since 2×299428807² = 179315220922886498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299428867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149714403 + 149714404.

It is an arithmetic number, because the mean of its divisors is an integer number (149714404).

Almost surely, 2^299428807 is an apocalyptic number.

299428807 is a deficient number, since it is larger than the sum of its proper divisors (1).

299428807 is an equidigital number, since it uses as much as digits as its factorization.

299428807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 299428807 is about 17304.0112979621. The cubic root of 299428807 is about 669.0078185821.

The spelling of 299428807 in words is "two hundred ninety-nine million, four hundred twenty-eight thousand, eight hundred seven".