984566663 has 2 divisors, whose sum is σ = 984566664. Its totient is φ = 984566662.

The previous prime is 984566591. The next prime is 984566711. The reversal of 984566663 is 366665489.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 984566663 - 2¹⁰ = 984565639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (984560663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492283331 + 492283332.

It is an arithmetic number, because the mean of its divisors is an integer number (492283332).

Almost surely, 2^984566663 is an apocalyptic number.

984566663 is a deficient number, since it is larger than the sum of its proper divisors (1).

984566663 is an equidigital number, since it uses as much as digits as its factorization.

984566663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 53.

The square root of 984566663 is about 31377.8052610440. The cubic root of 984566663 is about 994.8288597350.

The spelling of 984566663 in words is "nine hundred eighty-four million, five hundred sixty-six thousand, six hundred sixty-three".