299872057 has 2 divisors, whose sum is σ = 299872058. Its totient is φ = 299872056.

The previous prime is 299872049. The next prime is 299872063. The reversal of 299872057 is 750278992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247873536 + 51998521 = 15744^2 + 7211^2 .

It is a cyclic number.

It is not a de Polignac number, because 299872057 - 2³ = 299872049 is a prime.

It is a super-2 number, since 2×299872057² = 179846501138822498, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 299872057.

It is not a weakly prime, because it can be changed into another prime (299879057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149936028 + 149936029.

It is an arithmetic number, because the mean of its divisors is an integer number (149936029).

Almost surely, 2^299872057 is an apocalyptic number.

It is an amenable number.

299872057 is a deficient number, since it is larger than the sum of its proper divisors (1).

299872057 is an equidigital number, since it uses as much as digits as its factorization.

299872057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 299872057 is about 17316.8142855434. The cubic root of 299872057 is about 669.3377707059.

It can be divided in two parts, 299 and 872057, that added together give a square (872356 = 934²).

The spelling of 299872057 in words is "two hundred ninety-nine million, eight hundred seventy-two thousand, fifty-seven".