87299867 has 2 divisors, whose sum is σ = 87299868. Its totient is φ = 87299866.

The previous prime is 87299843. The next prime is 87299869. The reversal of 87299867 is 76899278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87299867 - 2¹⁰ = 87298843 is a prime.

Together with 87299869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87299869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43649933 + 43649934.

It is an arithmetic number, because the mean of its divisors is an integer number (43649934).

Almost surely, 2^87299867 is an apocalyptic number.

87299867 is a deficient number, since it is larger than the sum of its proper divisors (1).

87299867 is an equidigital number, since it uses as much as digits as its factorization.

87299867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 56.

The square root of 87299867 is about 9343.4397841480. The cubic root of 87299867 is about 443.6132684072.

The spelling of 87299867 in words is "eighty-seven million, two hundred ninety-nine thousand, eight hundred sixty-seven".