1689058663 has 2 divisors, whose sum is σ = 1689058664. Its totient is φ = 1689058662.

The previous prime is 1689058633. The next prime is 1689058697. The reversal of 1689058663 is 3668509861.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1689058663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1689058663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1689058603) 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, 844529331 + 844529332.

It is an arithmetic number, because the mean of its divisors is an integer number (844529332).

Almost surely, 2^1689058663 is an apocalyptic number.

1689058663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1689058663 is an equidigital number, since it uses as much as digits as its factorization.

1689058663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 1689058663 is about 41098.1588760373. The cubic root of 1689058663 is about 1190.9172277765.

The spelling of 1689058663 in words is "one billion, six hundred eighty-nine million, fifty-eight thousand, six hundred sixty-three".