1063885 has 4 divisors (see below), whose sum is σ = 1276668. Its totient is φ = 851104.

The previous prime is 1063873. The next prime is 1063891. The reversal of 1063885 is 5883601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5883601 = 47 ⋅125183.

It can be written as a sum of positive squares in 2 ways, for example, as 820836 + 243049 = 906^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 1063885 - 2⁷ = 1063757 is a prime.

It is a super-2 number, since 2×1063885² = 2263702586450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106384 + ... + 106393.

It is an arithmetic number, because the mean of its divisors is an integer number (319167).

2^1063885 is an apocalyptic number.

It is an amenable number.

1063885 is a deficient number, since it is larger than the sum of its proper divisors (212783).

1063885 is an equidigital number, since it uses as much as digits as its factorization.

1063885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212782.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1063885 is about 1031.4480112929. The cubic root of 1063885 is about 102.0856962755.

The spelling of 1063885 in words is "one million, sixty-three thousand, eight hundred eighty-five".