1063684669 has 2 divisors, whose sum is σ = 1063684670. Its totient is φ = 1063684668.

The previous prime is 1063684667. The next prime is 1063684673. The reversal of 1063684669 is 9664863601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1042644100 + 21040569 = 32290^2 + 4587^2 .

It is a cyclic number.

It is not a de Polignac number, because 1063684669 - 2¹ = 1063684667 is a prime.

It is a super-2 number, since 2×1063684669² = 2262850150131279122, which contains 22 as substring.

Together with 1063684667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1063684667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531842334 + 531842335.

It is an arithmetic number, because the mean of its divisors is an integer number (531842335).

Almost surely, 2^1063684669 is an apocalyptic number.

It is an amenable number.

1063684669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1063684669 is an equidigital number, since it uses as much as digits as its factorization.

1063684669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 1063684669 is about 32614.1789563987. The cubic root of 1063684669 is about 1020.7928824791.

The spelling of 1063684669 in words is "one billion, sixty-three million, six hundred eighty-four thousand, six hundred sixty-nine".