87289663 has 2 divisors, whose sum is σ = 87289664. Its totient is φ = 87289662.

The previous prime is 87289661. The next prime is 87289673. The reversal of 87289663 is 36698278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87289663 - 2¹ = 87289661 is a prime.

Together with 87289661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87289661) 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, 43644831 + 43644832.

It is an arithmetic number, because the mean of its divisors is an integer number (43644832).

Almost surely, 2^87289663 is an apocalyptic number.

87289663 is a deficient number, since it is larger than the sum of its proper divisors (1).

87289663 is an equidigital number, since it uses as much as digits as its factorization.

87289663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 49.

The square root of 87289663 is about 9342.8937166169. The cubic root of 87289663 is about 443.5959838976.

The spelling of 87289663 in words is "eighty-seven million, two hundred eighty-nine thousand, six hundred sixty-three".