1063681 has 8 divisors (see below), whose sum is σ = 1123200. Its totient is φ = 1005312.

The previous prime is 1063661. The next prime is 1063693. The reversal of 1063681 is 1863601.

1063681 is nontrivially palindromic in base 4.

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 1063681 - 2⁵ = 1063649 is a prime.

It is a super-2 number, since 2×1063681² = 2262834539522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

1063681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1063661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2145 + ... + 2593.

It is an arithmetic number, because the mean of its divisors is an integer number (140400).

2^1063681 is an apocalyptic number.

It is an amenable number.

1063681 is a deficient number, since it is larger than the sum of its proper divisors (59519).

1063681 is a wasteful number, since it uses less digits than its factorization.

1063681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1063681 is about 1031.3491164489. The cubic root of 1063681 is about 102.0791708794.

The spelling of 1063681 in words is "one million, sixty-three thousand, six hundred eighty-one".