986540663 has 2 divisors, whose sum is σ = 986540664. Its totient is φ = 986540662.

The previous prime is 986540641. The next prime is 986540671. The reversal of 986540663 is 366045689.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 986540663 - 2²⁰ = 985492087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (986540623) 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, 493270331 + 493270332.

It is an arithmetic number, because the mean of its divisors is an integer number (493270332).

Almost surely, 2^986540663 is an apocalyptic number.

986540663 is a deficient number, since it is larger than the sum of its proper divisors (1).

986540663 is an equidigital number, since it uses as much as digits as its factorization.

986540663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 986540663 is about 31409.2448651667. The cubic root of 986540663 is about 995.4932742679.

The spelling of 986540663 in words is "nine hundred eighty-six million, five hundred forty thousand, six hundred sixty-three".