1063688813 has 8 divisors (see below), whose sum is σ = 1166402496. Its totient is φ = 961977600.

The previous prime is 1063688803. The next prime is 1063688863. The reversal of 1063688813 is 3188863601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1063688813 - 2⁸ = 1063688557 is a prime.

It is a super-2 number, since 2×1063688813² = 2262867781802697938, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063688803) 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 in 7 ways as a sum of consecutive naturals, for example, 248393 + ... + 252638.

It is an arithmetic number, because the mean of its divisors is an integer number (145800312).

Almost surely, 2^1063688813 is an apocalyptic number.

It is an amenable number.

1063688813 is a deficient number, since it is larger than the sum of its proper divisors (102713683).

1063688813 is a wasteful number, since it uses less digits than its factorization.

1063688813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501235.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 1063688813 is about 32614.2424869872. The cubic root of 1063688813 is about 1020.7942081102.

The spelling of 1063688813 in words is "one billion, sixty-three million, six hundred eighty-eight thousand, eight hundred thirteen".