87299 has 2 divisors, whose sum is σ = 87300. Its totient is φ = 87298.

The previous prime is 87293. The next prime is 87313. The reversal of 87299 is 99278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87299 - 2¹² = 83203 is a prime.

It is a super-2 number, since 2×87299² = 15242230802, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (87293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43649 + 43650.

It is an arithmetic number, because the mean of its divisors is an integer number (43650).

2⁸⁷²⁹⁹ is an apocalyptic number.

87299 is a deficient number, since it is larger than the sum of its proper divisors (1).

87299 is an equidigital number, since it uses as much as digits as its factorization.

87299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 35.

The square root of 87299 is about 295.4640418054. The cubic root of 87299 is about 44.3611799852.

The spelling of 87299 in words is "eighty-seven thousand, two hundred ninety-nine".