87563143 has 2 divisors, whose sum is σ = 87563144. Its totient is φ = 87563142.

The previous prime is 87563137. The next prime is 87563149. The reversal of 87563143 is 34136578.

It is a balanced prime because it is at equal distance from previous prime (87563137) and next prime (87563149).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87563143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87563149) 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, 43781571 + 43781572.

It is an arithmetic number, because the mean of its divisors is an integer number (43781572).

Almost surely, 2^87563143 is an apocalyptic number.

87563143 is a deficient number, since it is larger than the sum of its proper divisors (1).

87563143 is an equidigital number, since it uses as much as digits as its factorization.

87563143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 87563143 is about 9357.5179935707. The cubic root of 87563143 is about 444.0587655221.

The spelling of 87563143 in words is "eighty-seven million, five hundred sixty-three thousand, one hundred forty-three".