1689677063 has 2 divisors, whose sum is σ = 1689677064. Its totient is φ = 1689677062.

The previous prime is 1689677057. The next prime is 1689677147. The reversal of 1689677063 is 3607769861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1689677063 - 2⁶ = 1689676999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1689676996 and 1689677014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1689677263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844838531 + 844838532.

It is an arithmetic number, because the mean of its divisors is an integer number (844838532).

Almost surely, 2^1689677063 is an apocalyptic number.

1689677063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1689677063 is an equidigital number, since it uses as much as digits as its factorization.

1689677063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 1689677063 is about 41105.6816389170. The cubic root of 1689677063 is about 1191.0625500143.

The spelling of 1689677063 in words is "one billion, six hundred eighty-nine million, six hundred seventy-seven thousand, sixty-three".