87835859 has 2 divisors, whose sum is σ = 87835860. Its totient is φ = 87835858.

The previous prime is 87835843. The next prime is 87835871. The reversal of 87835859 is 95853878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87835859 - 2⁴ = 87835843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87835859.

It is not a weakly prime, because it can be changed into another prime (87835819) 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, 43917929 + 43917930.

It is an arithmetic number, because the mean of its divisors is an integer number (43917930).

Almost surely, 2^87835859 is an apocalyptic number.

87835859 is a deficient number, since it is larger than the sum of its proper divisors (1).

87835859 is an equidigital number, since it uses as much as digits as its factorization.

87835859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 53.

The square root of 87835859 is about 9372.0786915177. The cubic root of 87835859 is about 444.5192957520.

The spelling of 87835859 in words is "eighty-seven million, eight hundred thirty-five thousand, eight hundred fifty-nine".