299996861 has 2 divisors, whose sum is σ = 299996862. Its totient is φ = 299996860.

The previous prime is 299996857. The next prime is 299996869. The reversal of 299996861 is 168699992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230857636 + 69139225 = 15194^2 + 8315^2 .

It is a cyclic number.

It is not a de Polignac number, because 299996861 - 2² = 299996857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 299996861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299996869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149998430 + 149998431.

It is an arithmetic number, because the mean of its divisors is an integer number (149998431).

Almost surely, 2^299996861 is an apocalyptic number.

It is an amenable number.

299996861 is a deficient number, since it is larger than the sum of its proper divisors (1).

299996861 is an equidigital number, since it uses as much as digits as its factorization.

299996861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 59.

The square root of 299996861 is about 17320.4174603270. The cubic root of 299996861 is about 669.4306152407.

The spelling of 299996861 in words is "two hundred ninety-nine million, nine hundred ninety-six thousand, eight hundred sixty-one".