1063985 has 8 divisors (see below), whose sum is σ = 1375080. Its totient is φ = 785664.

The previous prime is 1063973. The next prime is 1063987. The reversal of 1063985 is 5893601.

It can be written as a sum of positive squares in 4 ways, for example, as 1024 + 1062961 = 32^2 + 1031^2 .

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 1063985 - 2⁴ = 1063969 is a prime.

It is a super-2 number, since 2×1063985² = 2264128160450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1063987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8120 + ... + 8249.

It is an arithmetic number, because the mean of its divisors is an integer number (171885).

2^1063985 is an apocalyptic number.

It is an amenable number.

1063985 is a deficient number, since it is larger than the sum of its proper divisors (311095).

1063985 is a wasteful number, since it uses less digits than its factorization.

1063985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16387.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1063985 is about 1031.4964856944. The cubic root of 1063985 is about 102.0888946945.

It can be divided in two parts, 1063 and 985, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1063985 in words is "one million, sixty-three thousand, nine hundred eighty-five".